ONYX ACCEPTANCE FINANCIAL CORP
S-1/A, 1997-12-04
ASSET-BACKED SECURITIES
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<PAGE>   1
 
   
    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON DECEMBER 4, 1997
    
   
                                                      REGISTRATION NO. 333-40089
    
================================================================================
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
                                    FORM S-1
 
   
                                AMENDMENT NO. 1
    
   
                                       TO
    
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
 
                      ONYX ACCEPTANCE GRANTOR TRUST 1997-4
                     (ISSUER WITH RESPECT TO CERTIFICATES)
                            ------------------------
 
                     ONYX ACCEPTANCE FINANCIAL CORPORATION
                   (ORIGINATOR OF THE TRUST DESCRIBED HEREIN)
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                               <C>                               <C>
             DELAWARE                            9999                           33-0639768
 (STATE OR OTHER JURISDICTION OF     (PRIMARY STANDARD INDUSTRIAL            (I.R.S. EMPLOYER
  INCORPORATION OR ORGANIZATION)       CLASSIFICATION CODE NO.)            IDENTIFICATION NO.)
</TABLE>
 
                            ------------------------
 
                      8001 IRVINE CENTER DRIVE, 6TH FLOOR
                                IRVINE, CA 92618
                                 (714) 753-1191
         (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING
            AREA CODE, OF REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
                            ------------------------
 
                              REGAN E. KELLY, ESQ.
                            EXECUTIVE VICE PRESIDENT
                      8001 IRVINE CENTER DRIVE, 5TH FLOOR
                                IRVINE, CA 92618
                                 (714) 450-5500
            (NAME, ADDRESS INCLUDING ZIP CODE, AND TELEPHONE NUMBER,
                   INCLUDING AREA CODE, OF AGENT FOR SERVICE)
                            ------------------------
 
                                   COPIES TO:
 
<TABLE>
<S>                                                <C>
            DAVID J. JOHNSON, JR., ESQ.                           SUSAN M. CURTIS, ESQ.
                DIANA J. HUNT, ESQ.                     SKADDEN, ARPS, SLATE, MEAGHER & FLOM LLP
               O'MELVENY & MYERS LLP                                919 THIRD AVENUE
               400 SOUTH HOPE STREET                            NEW YORK, NEW YORK 10022
           LOS ANGELES, CALIFORNIA 90071
</TABLE>
 
                            ------------------------
 
    APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon as
practicable after this Registration Statement becomes effective.
 
    If the only securities being registered on this form are being offered
pursuant to a dividend or interest reinvestment plan, please check the following
box.  [ ]
 
    If any of the securities being registered on this form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, check the following box.  [ ]
 
    If this form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering.  [ ]
 
    If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration number of the earlier effective registration statement for the same
offering.  [ ]
 
    If delivery of the prospectus is expected to be made pursuant to Rule 134,
please check the following box.  [ ]
 
                        CALCULATION OF REGISTRATION FEE
 
   
<TABLE>
<S>                               <C>              <C>                  <C>                 <C>
=============================================================================================================
                                                     PROPOSED MAXIMUM    PROPOSED MAXIMUM       AMOUNT OF
     TITLE OF EACH CLASS OF         AMOUNT TO BE    OFFERING PRICE PER  AGGREGATE OFFERING    REGISTRATION
   SECURITIES TO BE REGISTERED       REGISTERED          UNIT(1)               PRICE             FEE(1)
- -------------------------------------------------------------------------------------------------------------
____% Auto Loan Pass-Through
Certificates, Series 1997-4......   $166,000,000           100%            $166,000,000        $50,302.98
=============================================================================================================
</TABLE>
    
 
   
(1) $303.03 of this amount was previously paid.
    
 
                            ----------------------------
 
    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933, AS AMENDED, OR UNTIL THIS REGISTRATION STATEMENT
SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID
SECTION 8(a), MAY DETERMINE.
================================================================================
<PAGE>   2
 
     INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A
     REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
     SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR
     MAY OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT
     BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR
     THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE
     SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE
     UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS
     OF ANY SUCH STATE.
 
                             SUBJECT TO COMPLETION
   
                 PRELIMINARY PROSPECTUS DATED DECEMBER 4, 1997
    
 
PROSPECTUS
[ONYX ACCEPTANCE CORP LOGO]

   
                                  $166,000,000
    
                      ONYX ACCEPTANCE GRANTOR TRUST 1997-4
                 % AUTO LOAN PASS-THROUGH CERTIFICATES, SERIES 1997-4
                     ONYX ACCEPTANCE FINANCIAL CORPORATION,
                                     Seller
                          ONYX ACCEPTANCE CORPORATION,
                                    Servicer

                            ------------------------
 
   
    The     % Auto Loan Pass-Through Certificates (the "Certificates") will
represent undivided fractional interests in the Onyx Acceptance Grantor Trust
1997-4 (the "Trust") to be formed by Onyx Acceptance Financial Corporation (the
"Seller"), a wholly-owned, limited purpose finance subsidiary of Onyx Acceptance
Corporation ("Onyx"). Initially, the Trust property will include a pool of fixed
rate Rule of 78's and Simple Interest Method motor vehicle retail installment
sales contracts (the "Initial Contracts") secured by new and used automobiles
and light-duty trucks (the "Initial Financed Vehicles"), certain monies due
under the Initial Contracts on or after December 1, 1997 (the "Cut-Off Date"),
security interests in the Initial Financed Vehicles, the benefits of an
irrevocable principal/interest surety bond (the "Surety Bond") issued by Capital
Markets Assurance Corporation (the "Insurer"), amounts on deposit in the
Prefunding Account described herein, a security interest in amounts on deposit
in the Capitalized Interest Account described herein and certain other property,
all as more fully described herein. The initial Aggregate Scheduled Balance (as
defined herein) of the Initial Contracts as of the Cut-Off Date was
$155,914,168. From time to time on or before March 12, 1998, the Prefunded
Amount will be used for purchase by the Trust of additional Rule of 78's and
Simple Interest Method contracts (the "Subsequent Contracts" and together with
the Initial Contracts, the "Contracts") secured by new and used automobiles and
light duty trucks (the "Subsequent Financed Vehicles" and, together with the
Initial Financed Vehicles, the "Financed Vehicles"). Onyx will act as servicer
of the Contracts (the "Servicer").
    
 
   
    Interest on the Certificates at the Pass-Through Rate of     % per annum
(each, an "Interest Distribution"), will be distributed to the
Certificateholders on the 15th day of each month (or, if the 15th day is not a
Business Day, the following Business Day) (each, a "Distribution Date")
commencing January 15, 1998 and ending on July 15, 2004 (the "Final Distribution
Date"). Payments of principal, as well as the principal balance of liquidated
contracts and contracts repurchased by the Seller and purchased by the Servicer
(the "Principal Distribution"), will be distributed to Certificateholders on
each Distribution Date as described herein. In addition, the Principal
Distribution on the Distribution Date immediately following the end of the
Funding Period, which shall occur on or before March 12, 1998, will include any
portion of the Prefunded Amount remaining on deposit in the Prefunding Account.
    
 
    It is a condition of issuance that the Certificates be rated in the highest
category by two nationally recognized rating agencies based primarily on the
issuance of the Surety Bond by the Insurer. Under the Surety Bond, the Insurer
has unconditionally and irrevocably guaranteed payment of the Interest
Distribution and the Principal Distribution on each Distribution Date, including
the Final Distribution Date. See "The Certificates and the Agreement -- The
Surety Bond."

                            ------------------------
 
SEE "RISK FACTORS" AT PAGE 11 FOR A DISCUSSION OF CERTAIN FACTORS THAT SHOULD BE
                                   CONSIDERED
         BY PROSPECTIVE PURCHASERS OF THE CERTIFICATES OFFERED HEREBY.

                            ------------------------
 
    THE CERTIFICATES REPRESENT INTERESTS IN THE TRUST AND ARE NOT INSURED OR
     GUARANTEED BY THE SELLER, ONYX OR ANY OF THEIR RESPECTIVE AFFILIATES.
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
<TABLE>
<S>                                   <C>                    <C>                    <C>
==========================================================================================================
                                             PRICE TO             UNDERWRITING         PROCEEDS TO THE
                                            PUBLIC(1)               DISCOUNT             SELLER(1)(2)
- ----------------------------------------------------------------------------------------------------------
Per Certificate......................           %                      %                      %
- ----------------------------------------------------------------------------------------------------------
Total................................           $                      $                      $
==========================================================================================================
</TABLE>
 
   
(1) Plus accrued interest, if any, calculated from December   , 1997.
    
 
   
(2) Before deducting expenses payable by the Seller estimated to be $345,000.
    

                            ------------------------

    The Certificates are offered by the Underwriter, subject to prior sale,
when, as and if delivered to and accepted by the Underwriter, and subject to
various prior conditions, including its right to reject orders in whole or in
part. It is expected that the Certificates will be delivered in book-entry form,
on or about December   , 1997, through the facilities of The Depository Trust
Company ("DTC").

                            ------------------------
 
                              MERRILL LYNCH & CO.

                            ------------------------
 
               The date of this Prospectus is December   , 1997.
<PAGE>   3
 
     CERTAIN PERSONS PARTICIPATING IN THIS OFFERING MAY ENGAGE IN TRANSACTIONS
THAT STABILIZE, MAINTAIN OR OTHERWISE AFFECT THE PRICE OF THE CERTIFICATES,
INCLUDING OVER-ALLOTMENT, STABILIZING AND SHORT-COVERING TRANSACTIONS IN SUCH
CERTIFICATES, AND THE IMPOSITION OF PENALTY BIDS, DURING AND AFTER THE OFFERING.
FOR A DESCRIPTION OF THESE ACTIVITIES, SEE "UNDERWRITING".
 
                             AVAILABLE INFORMATION
 
     The Seller, as originator of the Trust, has filed a Registration Statement
under the Securities Act of 1933, as amended, with the Securities and Exchange
Commission (the "Commission") with respect to the Certificates offered pursuant
to this Prospectus. This Prospectus, which forms a part of the Registration
Statement, does not contain all of the information included in the Registration
Statement and the exhibits thereto. For further information, reference is made
to the Registration Statement and amendments thereof and to the exhibits
thereto, which are available for inspection without charge at the office of the
Commission at 450 Fifth Street, N.W., Washington, D.C. 20549, and at the
regional offices of the Commission at 7 World Trade Center, Suite 1300, New
York, New York 10048 and at the Northwestern Atrium Building, 500 West Madison
Street, Suite 1400, Chicago, Illinois 60661-2511, and copies of which may be
obtained from the Commission at prescribed rates. The Commission also maintains
a web site that contains reports, proxy and information statements and other
information regarding registrants that file electronically with the Commission,
including the Servicer, and the address is http://www.sec.gov. The Servicer, on
behalf of the Trust, will also file or cause to be filed with the Commission
such periodic reports as are required under the Securities Exchange Act of 1934,
as amended (the "Exchange Act") and the rules and regulations of the Commission
thereunder, and such reports can be obtained as described above. Such reports
will include Current Reports on Form 8-K filed after each Distribution Date, and
an Annual Report on Form 10-K. Such reports will contain certain financial
information regarding the Trust, including the Distribution Date Statement which
will be furnished monthly to Certificateholders as described under "Reports to
Certificateholders" below. Reports on Form 8-K and Form 10-K will not be filed
for any period which ends after December 31, 1997; however, the
Certificateholders will continue to receive the Distribution Date Statement
monthly, as described below.
 
                         REPORTS TO CERTIFICATEHOLDERS
 
     Unless and until Definitive Certificates are issued (which will occur under
the limited circumstances described herein), the unaudited monthly Distribution
Date Statements and unaudited annual reports concerning the Trust which are
described herein under "Additional Provisions of the Agreement -- Statements to
Certificateholders" and are prepared by the Servicer, will be sent by the
Trustee only to Cede & Co. as the nominee of The Depository Trust Company
("DTC") and the registered holder of the Certificates. Such reports will not
constitute financial statements prepared in accordance with generally accepted
accounting principles. These reports may be obtained by Certificate Owners by a
request in writing to the Trustee. See "The Certificates and the
Agreement -- Book-Entry Registration." The Seller does not intend to send any of
its financial reports to the Certificateholders.
 
                                        2
<PAGE>   4
 
                                    SUMMARY
 
     The following summary is qualified in its entirety by reference to the
detailed information appearing elsewhere in this Prospectus. Certain capitalized
terms used in this Summary are defined elsewhere in this Prospectus. See the
Index of Principal Definitions for the location herein of the definitions of
certain capitalized terms. An investment in the Certificates involves various
risks, and potential purchasers should carefully consider the matters discussed
under "Risk Factors" herein in considering an investment in the Certificates.
 
Issuer.....................  Onyx Acceptance Grantor Trust 1997-4 (the "Trust"),
                             to be formed by Onyx Acceptance Financial
                             Corporation (the "Seller") pursuant to the Pooling
                             and Servicing Agreement, to be dated as of December
                             1, 1997 (the "Agreement"), among the Seller, Onyx
                             Acceptance Corporation (the "Servicer") and Bankers
                             Trust Company (the "Trustee").
 
Securities Offered.........    % Auto Loan Pass-Through Certificates (the
                             "Certificates") representing fractional undivided
                             interests in the Trust. The Certificates will be
                             offered for purchase in denominations of $1,000 and
                             integral multiples thereof. See "The Certificates
                             and the Agreement -- General."
 
Initial Certificate
Balance....................  The initial principal balance of the Certificates
                             is equal to the aggregate principal balance of the
                             Initial Contracts as of the Cut-Off Date,
                             calculated in accordance with the Rule of 78's or
                             Simple Interest Method, plus the Prefunded Amount.
                             The term "Cut-Off Date Scheduled Balance" means,
                             with respect to each Initial Contract, the
                             principal balance thereof as of the Cut-Off Date
                             and, with respect to each Subsequent Contract,
                             means the principal balance thereof as of the
                             related Subsequent Transfer Date, in each case
                             calculated in accordance with the Rule of 78's or
                             Simple Interest Method. See "The Contracts."
 
Seller.....................  Onyx Acceptance Financial Corporation, a
                             wholly-owned, limited purpose subsidiary of Onyx
                             Acceptance Corporation ("Onyx"). The Seller's
                             principal executive offices are located at 8001
                             Irvine Center Drive, 6th Floor, Irvine, California
                             92618 and its telephone number is (714) 753-1191.
                             See "The Seller." All of the Contracts will have
                             been purchased by the Seller from Onyx.
                             Substantially all of the Contracts have been
                             purchased by Onyx from new and used car Dealers
                             unaffiliated with Onyx or the Seller, and a limited
                             number of Contracts have been originated by Onyx
                             itself. See "The Onyx Portfolio of Motor Vehicle
                             Contracts."
 
Servicer...................  Onyx. The Servicer's principal executive offices
                             are located at 8001 Irvine Center Drive, 5th Floor,
                             Irvine California 92618 and its telephone number is
                             (714) 450-5500. See "The Servicer."
 
Trustee....................  Bankers Trust Company.
 
   
Trust Property.............  The Trust's assets (the "Trust Property") will
                             include: (i) a pool of fixed rate motor vehicle
                             retail installment sales contracts (the "Initial
                             Contracts") of which approximately 42.39% of the
                             Aggregate Scheduled Balance as of the Cut-Off Date
                             are Rule of 78's Contracts and approximately 57.61%
                             of the Aggregate Scheduled Balance as of the
                             Cut-Off Date are Simple Interest Contracts, and all
                             of which were purchased from the Seller and secured
                             by new and used automobiles and light-duty trucks
                             (the "Initial Financed Vehicles"), (ii) certain
                             documents relating to the Initial Contracts, (iii)
                             certain monies due under the Initial Contracts on
                             or after the Cut-Off Date, (iv) security interests
                             in the
    
 
                                        3
<PAGE>   5
 
                             Initial Financed Vehicles and the rights to receive
                             proceeds from claims on certain insurance policies
                             covering the Initial Financed Vehicles or the
                             individual obligors under each related Initial
                             Contract and the right to certain proceeds under
                             the Blanket Insurance Policy, (v) all amounts on
                             deposit in the Collection Account, including all
                             Eligible Investments credited thereto (but
                             excluding any investment income from Eligible
                             Investments), (vi) the benefits of an irrevocable
                             principal/interest surety bond (the "Surety Bond")
                             issued by Capital Markets Assurance Corporation
                             (the "Insurer"), (vii) the right of the Seller to
                             cause Onyx to repurchase certain Contracts under
                             certain circumstances, (viii) all right, title and
                             interest of the Seller under the Capitalized
                             Interest Agreement, dated as of December 1, 1997,
                             between the Seller and Onyx (the "Capitalized
                             Interest Agreement"), (ix) funds on deposit in a
                             trust account established for the benefit of the
                             Certificateholders (the "Prefunding Account") and
                             (x) all proceeds of the foregoing. From time to
                             time during the Funding Period, and as frequently
                             as each Business Day (each such day a "Subsequent
                             Transfer Date"), the Trust will purchase from the
                             Seller with monies on deposit in the Prefunding
                             Account, additional Rule of 78's and Simple
                             Interest Method contracts (the "Subsequent
                             Contracts" and, together with the Initial
                             Contracts, the "Contracts") secured by new and used
                             automobile and light-duty trucks (the "Subsequent
                             Financed Vehicles" and, together with the Initial
                             Financed Vehicles, the "Financed Vehicles"). As of
                             each such Subsequent Transfer Date, the Trust
                             Property will include the Subsequent Contracts
                             delivered to the Trustee on such Subsequent
                             Transfer Date, certain documents relating to the
                             Subsequent Contracts, certain monies due under the
                             Subsequent Contracts after the related Subsequent
                             Transfer Dates, security interests in the
                             Subsequent Financed Vehicles and the right to
                             receive proceeds from claims under certain
                             insurance policies in respect of individual
                             Subsequent Financed Vehicles or the related
                             obligors, and all proceeds of the foregoing. See
                             "The Trust."
 
Pass-Through Rate..........    % per annum, payable monthly at one-twelfth the
                             annual rate and calculated on the basis of a
                             360-day year of twelve 30-day months.
 
Distribution Date..........  The 15th day of each month (or, if such day is not
                             a Business Day, the next succeeding Business Day)
                             commencing January 15, 1998 (each a "Distribution
                             Date"). A "Business Day" is a day other than a
                             Saturday, Sunday or other day on which commercial
                             banks located in California or New York are
                             authorized or obligated to be closed.
 
   
Final Distribution Date....  July 15, 2004.
    
 
   
Interest Distribution......  On each Distribution Date, monthly interest (the
                             "Interest Distribution") in an amount equal to the
                             product of one-twelfth of the Pass-Through Rate and
                             the Pool Balance as of the end of the Collection
                             Period preceding the related Collection Period will
                             be distributed to the Certificateholders of record
                             on a pro rata basis as of the related Record Date.
                             The amount of interest payable on the Certificates
                             on the first Distribution Date will be        per
                             $1,000.00 dollars. The "Pool Balance" as of any
                             date is the Aggregate Scheduled Balance of the
                             Contracts as of such date, excluding those
                             Contracts which as of such date have become
                             Liquidated Contracts or have been repurchased by
                             the Seller or purchased by the Servicer, plus the
                             amount, if any, remaining on deposit in the
                             Prefunding Account on such date (excluding any
    
 
                                        4
<PAGE>   6
 
   
                             investment earnings thereon). Interest will be paid
                             (i) to the extent of the portion of the Pool
                             Balance represented by Contracts, from collections
                             received on the Contracts on deposit in the
                             Collection Account or previously collected and
                             available for distribution, and (ii) to the extent
                             of the portion of the Pool Balance represented by
                             the Prefunded Amount from investment earnings
                             thereon, and from payments under the Capitalized
                             Interest Agreement. A "Collection Period" with
                             respect to a Distribution Date will be the calendar
                             month preceding the month in which such
                             Distribution Date occurs; provided, that with
                             respect to Liquidated Contracts (as defined below)
                             the Collection Period will be the period from but
                             excluding the sixth Business Day preceding the
                             immediately preceding Distribution Date to and
                             including the sixth Business Day preceding such
                             Distribution Date. With respect to the first
                             Distribution Date the "Collection Period" for
                             Liquidated Contracts will be the period from and
                             including the Cut-Off Date to and including the
                             sixth Business Day preceding such first
                             Distribution Date. See "The Certificates and the
                             Agreement -- Distributions of Principal and
                             Interest."
    
 
   
Principal Distribution.....  On each Distribution Date, the Principal
                             Distribution for the related Collection Period will
                             be passed through to the Certificateholders. The
                             "Principal Distribution" on any Distribution Date
                             is the Aggregate Scheduled Balance Decline (as
                             defined below) during the related Collection Period
                             and, with respect to the Distribution Date
                             immediately following the end of the Funding
                             Period, any portion of the Prefunded Amount
                             remaining on deposit in the Prefunding Account. The
                             Principal Distribution on the Final Distribution
                             Date will include the Aggregate Scheduled Balance
                             of all Contracts that are outstanding at the end of
                             the Collection Period immediately prior to the
                             Final Distribution Date. The "Aggregate Scheduled
                             Balance Decline" for any Distribution Date is the
                             sum of (x) the amount by which the Aggregate
                             Scheduled Balance of the Contracts as of the
                             beginning of the related Collection Period exceeds
                             the Aggregate Scheduled Balance of such Contracts
                             as of the end of the related Collection Period
                             (excluding any Subsequent Contracts added during
                             the related Collection Period) and (y) the amount
                             by which the Aggregate Scheduled Balance of the
                             Subsequent Contracts (determined as of each related
                             Subsequent Transfer Date) transferred to the Trust
                             during the related Collection Period exceeds the
                             Aggregate Scheduled Balance of such Subsequent
                             Contracts as of the end of the related Collection
                             Period. The "Aggregate Scheduled Balance" of the
                             Contracts is the sum of the Scheduled Balance of
                             each Contract. The "Scheduled Balance" of a Rule of
                             78's Contract at any date is equal to the Cut-Off
                             Date Scheduled Balance of such Contract reduced by
                             the portion of each scheduled payment of principal
                             and interest due on such Contract (the "Monthly
                             P&I") on or prior to the date of calculation that
                             is allocated to principal under the Recomputed
                             Actuarial Method. The Scheduled Balance of a Simple
                             Interest Contract at any date is equal to the
                             Cut-Off Date Scheduled Balance of such Contract
                             reduced by the portion of Monthly P&I on or prior
                             to the date of calculation that is allocated to
                             principal under the Simple Interest Method. The
                             Scheduled Balance of any Contract that is a
                             Liquidated Contract or that has been purchased by
                             the Servicer or repurchased by the Seller will
                             equal zero. A "Liquidated Contract" is a Contract
                             that (a) is the subject of a Full Prepayment, (b)
                             is a Defaulted Contract and with respect to which
                             Liquidation
    
 
                                        5
<PAGE>   7
 
                             Proceeds constituting, in the Servicer's reasonable
                             judgment, the final amounts recoverable have been
                             received, (c) is paid in full on or after its
                             Maturity Date or (d) has been a Defaulted Contract
                             for four or more Collection Periods and as to which
                             Liquidation Proceeds constituting the final amounts
                             recoverable have not been received; provided,
                             however, that in any event a Contract that is
                             delinquent in the amount of five monthly payments
                             at the end of a Collection Period is a Liquidated
                             Contract. A "Defaulted Contract" with respect to
                             any Collection Period is a Contract (a) which is,
                             at the end of such Collection Period, delinquent in
                             the amount of two monthly payments or (b) with
                             respect to which the related Financed Vehicle has
                             been repossessed or repossession efforts have been
                             commenced. See "The Contracts" and "The
                             Certificates and the Agreement -- Distributions of
                             Principal and Interest."
 
The Prefunding Account.....  The Prefunding Account will be maintained in the
                             name of the Trustee for the benefit of the
                             Certificateholders and is designed solely to hold
                             funds to be applied by the Trustee during the
                             Funding Period (as defined herein) to pay to the
                             Seller the purchase price for Subsequent Contracts.
                             Monies on deposit in the Prefunding Account will
                             not be available to cover losses on or otherwise
                             make any payments with respect to the portion of
                             the Certificate Balance represented by Contracts.
                             Interest on the portion of the Certificate Balance
                             represented by the Prefunded Amount will be payable
                             from earnings received by the Trustee during the
                             related Collection Period from investment of the
                             Prefunded Amount on deposit in the Prefunding
                             Account and from payments made under the
                             Capitalized Interest Agreement, and will not be
                             payable from collections on the Contracts.
 
   
                             The Prefunding Account will be created with an
                             initial deposit by the Seller of $10,085,832.00
                             (the "Prefunded Amount"). The "Funding Period" will
                             be the period from the date the Certificates are
                             issued (the "Closing Date") until the earliest to
                             occur of (i) the date on which the remaining
                             Prefunded Amount is less than $20,000, (ii) the
                             date on which an Event of Default occurs or (iii)
                             the close of business on March   , 1998. During the
                             Funding Period, on one or more Subsequent Transfer
                             Dates (as defined herein), the Prefunded Amount
                             will be applied to purchase Subsequent Contracts
                             from the Seller. The Seller expects that the
                             Prefunded Amount will be reduced to less than
                             $20,000 by the scheduled end of the Funding Period,
                             although no assurances can be given in this regard.
                             Any portion of the Prefunded Amount remaining on
                             deposit in the Prefunding Account at the end of the
                             Funding Period will be payable as principal to
                             Certificateholders on the immediately following
                             Distribution Date. See "The Certificates and the
                             Agreement -- General" and "The Certificates and the
                             Agreement -- The Prefunding Account; Mandatory
                             Partial Prepayment of the Certificates."
    
 
Mandatory Partial
Prepayment.................  The Certificates will be prepaid in part on the
                             Distribution Date immediately succeeding the date
                             on which the Funding Period ends in the event that
                             any portion of the Prefunded Amount remains on
                             deposit in the Prefunding Account after giving
                             effect to the sale to the Trust of all Subsequent
                             Contracts sold to the Trust during the Funding
                             Period, including any such acquisition and
                             conveyance on the date on which the Funding Period
                             ends (a "Mandatory Partial Prepayment"). The amount
                             to be distributed to Certificateholders in
                             connection with any Mandatory Partial Prepayment
                             will equal the remaining Prefunded Amount. See
 
                                        6
<PAGE>   8
 
                             "The Certificates and the Agreement -- The
                             Prefunding Account; Mandatory Partial Prepayment of
                             the Certificates."
 
   
Capitalized Interest
Agreement..................  Onyx will enter into the Capitalized Interest
                             Agreement with the Seller, and the Seller will
                             assign its interest therein to the Trust. The
                             purpose of the Capitalized Interest Agreement is to
                             cover the shortfall between interest distributable
                             on the portion of the Certificate Balance
                             represented by the Prefunded Amount and interest
                             which will be earned by the Trust on the Prefunded
                             Amount prior to the time it is used to purchase
                             Subsequent Contracts. The Capitalized Interest
                             Agreement will be in effect from the Closing Date
                             until April 15, 1998, which is the Distribution
                             Date following the end of the Funding Period. The
                             Capitalized Interest Agreement will provide for
                             payment of the Capitalized Interest Amount on or
                             before five business days prior to each
                             Distribution Date, ending with the Distribution
                             Date on April 15, 1998. The "Capitalized Interest
                             Amount," with respect to any Collection Period is
                             an amount equal to (a) one month's interest on the
                             Prefunded Amount on deposit in the Prefunding
                             Account as of the first day of such Collection
                             Period at the Pass-Through Rate plus (b) 1/12 of
                             the premium for the Surety Bond on the Prefunded
                             Amount minus (c) the earnings received by the
                             Trustee during the related Collection Period from
                             investment of the Prefunded Amount on deposit in
                             the Prefunding Account.
    
 
   
                             The obligation of Onyx to pay the Capitalized
                             Interest Amount will be secured by funds on deposit
                             in a segregated trust account to be maintained for
                             the benefit of the Certificateholders and the
                             Insurer (the "Capitalized Interest Account"). The
                             amount required to be deposited in the Capitalized
                             Interest Account will initially be equal to the
                             maximum Capitalized Interest Amount that may become
                             owing under the Capitalized Interest Agreement
                             assuming that with respect to the Prefunded Amount
                             during the Funding Period, a certain rate of
                             interest (set forth in the Agreement) is earned and
                             no Subsequent Contracts are purchased. On each
                             Subsequent Closing Date, certain amounts shall be
                             released to Onyx from the Capitalized Interest
                             Account with respect to Subsequent Contracts
                             acquired by the Trust on each Subsequent Transfer
                             Date since the preceding Subsequent Closing Date,
                             or the Closing Date, as the case may be. See "The
                             Certificates and the Agreement -- Capitalized
                             Interest Agreement and Capitalized Interest
                             Account."
    
 
   
Servicing Fee..............  The Servicer will be responsible for managing,
                             administering, servicing, and making collections on
                             the Contracts. Compensation to the Servicer will
                             consist of a monthly fee, payable from the Trust to
                             the Servicer on each Distribution Date, in an
                             amount equal to the product of one-twelfth of 1.00%
                             per annum (the "Servicing Fee Rate") multiplied by
                             the Pool Balance (excluding the Prefunded Amount)
                             as of the end of the Collection Period preceding
                             the related Collection Period. As additional
                             compensation, the Servicer will be entitled to any
                             late fees and other administrative fees and
                             expenses or similar charges collected with respect
                             to the Contracts. The Servicer or its designee will
                             also receive as servicing compensation investment
                             earnings on Eligible Investments (other than
                             earnings on amounts on deposit in the Prefunding
                             Account) and the amount, if any, by which the
                             outstanding principal balance of a Rule of 78's
                             Contract that is subject to a Full Prepayment
                             exceeds the Scheduled Balance of such Contract (the
                             "Servicing Fee"). See "The Certificates and the
                             Agreement -- Servicing Fee."
    
 
                                        7
<PAGE>   9
 
   
Surety Bond................  On the Closing Date, the Insurer will issue a
                             principal/interest surety bond (the "Surety Bond")
                             to the Trustee pursuant to an Insurance and
                             Reimbursement Agreement (the "Insurance
                             Agreement"), dated as of December   , 1997, by and
                             among the Insurer, Onyx, the Seller and the
                             Trustee. Pursuant to the Surety Bond, the Insurer
                             will unconditionally and irrevocably guarantee
                             payment of the Interest Distribution and Principal
                             Distribution on each Distribution Date to the
                             Trustee for the benefit of the Certificateholders.
                             If on the Servicer Report Date with respect to any
                             Distribution Date the amount on deposit and
                             available in the Collection Account, after giving
                             effect to all amounts deposited or payable from the
                             Payahead Account, the Prefunding Account and/or
                             pursuant to the Capitalized Interest Agreement
                             (including from the Capitalized Interest Account)
                             is less than the sum of the Servicing Fee, the
                             Principal Distribution and Interest Distribution
                             for the related Distribution Date, the Trustee, by
                             delivering a notice to the Insurer, shall demand
                             payment under the Surety Bond in an amount equal to
                             such deficiency. The Insurer shall pay or cause to
                             be paid such amount to the Trustee for credit to
                             the Collection Account and the Trustee shall
                             withdraw from the Collection Account and shall pay
                             such amount to the Certificateholders on the
                             related Distribution Date. On the Final
                             Distribution Date, to the extent the amount on
                             deposit and available in the Collection Account is
                             less than all remaining unpaid interest and
                             principal on the Certificates, the Insurer shall
                             pay or cause to be paid an amount equal to such
                             shortfall. See "The Certificates and the
                             Agreement -- The Surety Bond."
    
 
   
Contracts..................  The Aggregate Scheduled Balance of the Initial
                             Contracts as of the Cut-Off Date was $155,914,168.
                             As of the Cut-Off Date the Initial Contracts had a
                             weighted average annual percentage rate of 14.70%
                             and a weighted average remaining term of 56.4
                             months. Approximately 42.39% of the Aggregate
                             Scheduled Balance of the Initial Contracts as of
                             the Cut-Off Date allocate interest and principal in
                             accordance with the Rule of 78's (the "Rule of 78's
                             Contracts"), and approximately 57.61% in accordance
                             with the Simple Interest Method (the "Simple
                             Interest Contracts"). Approximately 60.37% of the
                             Aggregate Scheduled Balance of the Initial
                             Contracts as of the Cut-Off Date were originated in
                             California, 8.51% in Arizona, 7.87% in Illinois,
                             7.04% in Florida, 6.60% in Washington and 5.21% in
                             Nevada. No other state represents more than 5.0% of
                             the Initial Contracts.
    
 
                             Substantially all of the Contracts (including the
                             Subsequent Contracts) will have been originated by
                             automobile dealerships ("Dealers") and assigned to
                             Onyx, and a limited number of Contracts will have
                             been originated by Onyx itself. All the Contracts
                             will have been purchased by the Seller from Onyx
                             and by the Trust from the Seller. The Seller is
                             required to repurchase certain of the Contracts
                             under certain circumstances if certain
                             representations and warranties made by the Seller
                             are incorrect in a manner that materially and
                             adversely affects the Certificateholders or the
                             Insurer. All of the Contracts will have been
                             selected by Onyx from its portfolio of motor
                             vehicle installment sales contracts based upon the
                             criteria specified in the Agreement.
 
                             No later than the second Business Day following the
                             Business Day on which Onyx originates or acquires a
                             Motor Vehicle Contract during the Funding Period,
                             pursuant to the Purchase Agreement, Onyx will be
                             obligated to sell, and the Seller will be obligated
                             to purchase, those
 
                                        8
<PAGE>   10
 
   
                             Motor Vehicle Contracts that meet the eligibility
                             requirements at a purchase price equal to the
                             aggregate principal amount thereof. Pursuant to the
                             Agreement and subject to the satisfaction of
                             certain conditions described herein, the Seller
                             will sell Subsequent Contracts to the Trust on each
                             Subsequent Transfer Date. Payment for each such
                             Subsequent Contract sold to the Trust shall be made
                             by release to the Seller from the Prefunding
                             Account of an amount equal to the amount paid by
                             the Seller to Onyx for such Subsequent Contract.
                             The aggregate principal balance of the Subsequent
                             Contracts to be conveyed to the Trust during the
                             Funding Period will not exceed $10,085,832.00,
                             which is equal to the Prefunded Amount. On the
                             Business Day preceding the first Distribution Date
                             and on the Business Day preceding each Distribution
                             Date immediately following a Subsequent Transfer
                             Date, (each such date a "Subsequent Closing Date")
                             UCC financing statements with respect to all
                             Subsequent Contracts sold to the Trust since the
                             preceding Subsequent Closing Date (or the Closing
                             Date, in the case of the first Subsequent Closing
                             Date) will be filed and all legal opinions,
                             officers' certificates and other legal
                             documentation with respect to the sale of such
                             Subsequent Contracts to the Trust will be executed
                             and delivered.
    
 
                             All collections of Monthly P&I, all prepayments on
                             the Contracts collected by the Servicer and all
                             amounts paid under the Surety Bond will be
                             deposited in or credited to the Collection Account.
                             Partial prepayments of Monthly P&I ("Payaheads") on
                             Rule of 78's Contracts will be transferred on the
                             Servicer Report Date to the Payahead Account, to be
                             applied against future scheduled payments of
                             Monthly P&I. Partial and full prepayments on Simple
                             Interest Contracts will be passed through to
                             Certificateholders on the Distribution Date
                             immediately following the Collection Period in
                             which such prepayments are received. All payments
                             to the Certificateholders will be made from the
                             Collection Account and certain funds remaining in
                             the Collection Account following distributions to
                             Certificateholders and others will be paid to the
                             Insurer to be promptly distributed in accordance
                             with the terms of the Insurance Agreement. See "The
                             Contracts" and "The Certificates and the
                             Agreement -- Payahead Account."
 
   
Optional Termination.......  The Servicer may purchase all of the Contracts on
                             any Distribution Date as of which the Pool Balance
                             (after giving effect to the Principal Distribution
                             on such Distribution Date) has declined to 10% or
                             less of the Cut-Off Date Scheduled Balance for all
                             of the Initial Contracts plus the Prefunded Amount
                             (the "Original Pool Balance"), subject to certain
                             provisions in the Agreement. See "The Certificates
                             and the Agreement -- Repurchase of Contracts."
    
 
Federal Income Tax
Status.....................  In the opinion of counsel to the Seller, the Trust
                             will be treated for Federal income tax purposes as
                             a grantor trust and not as an association taxable
                             as a corporation. Certificateholders must report
                             their respective allocable shares of income earned
                             on Trust assets and, subject to certain limitations
                             applicable to individuals, estates and trusts, may
                             deduct their respective allocable shares of
                             reasonable servicing and other fees. See "Certain
                             Federal Income Tax Consequences."
 
ERISA Considerations.......  The Certificates may be purchased by employee
                             benefit plans that are subject to the Employee
                             Retirement Income Security Act of 1974, as amended
                             ("ERISA") upon satisfaction of certain conditions
                             described herein. See "ERISA Considerations."
 
                                        9
<PAGE>   11
 
Rating.....................  It is a condition of issuance of the Certificates
                             that they be rated in the highest rating category
                             by two nationally recognized rating agencies. This
                             rating will be based primarily on the issuance of
                             the Surety Bond by the Insurer. See "Risk
                             Factors -- Rating."
 
Registration of the
Certificates...............  The Certificates will initially be represented by
                             certificates registered in the name of Cede & Co.
                             ("Cede"), as the nominee of The Depository Trust
                             Company ("DTC"). No person acquiring an interest in
                             a Certificate through the facilities of DTC (a
                             "Certificate Owner") will be entitled to receive a
                             Definitive Certificate representing such person's
                             interest in the Trust, except in the event that
                             Definitive Certificates are issued in certain
                             limited circumstances. See "The Certificates and
                             the Agreement."
 
                                       10
<PAGE>   12
 
                                  RISK FACTORS
 
LIMITED LIQUIDITY
 
     There is currently no secondary market for the Certificates, and there will
be no application to list the Certificates on an exchange. The Underwriter
currently intends, but is not obligated, to make a market in the Certificates.
However, there can be no assurance that the Underwriter will make such a market,
that a secondary market will develop or, if it does develop, that it will
provide Certificateholders with liquidity of investment or will continue for the
life of the Certificates.
 
LIMITED OPERATING HISTORY OF ONYX
 
     All of the Initial Contracts were, and all of the Subsequent Contracts will
be, originally purchased by Onyx from Dealers or originated by Onyx itself in
accordance with credit underwriting criteria established by Onyx. In February
1994, Onyx commenced its operations as a purchaser and servicer of motor vehicle
retail installment sales contracts. Thus, Onyx has historical performance data
for only a relatively short period with respect to the motor vehicle retail
installment sales contracts it purchases and originates. Delinquencies and loan
losses may increase from existing levels in the portfolio with the passage of
time.
 
     Onyx is still at an early stage of operations and is subject to all of the
risks inherent in the establishment of a new business enterprise and must, among
other things, continue to attract, retain and motivate qualified personnel,
support and grow its auto lending and contract servicing business, maintain its
existing relationships with automobile dealers and develop new relationships
with dealers in and beyond Onyx's present market region. Onyx experienced
operating losses from inception through December 31, 1995. Onyx's operating
losses for the years ended December 31, 1994 and December 31, 1995 were $3.5
million and $3.1 million, respectively. Onyx's net income for the year ended
December 31, 1996 was $7.7 million and for the nine month period ended September
30, 1997 was $1.9 million.
 
CERTAIN LEGAL ASPECTS -- THE CONTRACTS
 
     The transfer of the Contracts to the Trust is subject to the perfection
requirements of the Uniform Commercial Code ("UCC"), as in effect in California.
The Seller will take or cause to be taken such action as is required to perfect
the Trust's rights in the Contracts and will warrant that the Trust has good
title free and clear of liens and encumbrances to each Initial Contract on the
date the Certificates are issued (the "Closing Date"). The Seller will covenant
to take such actions as are necessary to ensure that the Trust will have good
title free and clear of all liens and encumbrances to each Subsequent Contract
on each related Subsequent Transfer Date and will deliver all Subsequent
Contracts to the Trustee on the related Subsequent Transfer Dates. The
Subsequent Contracts delivered on each Subsequent Transfer Date will be
physically held by the Trustee. Upon the Subsequent Closing Date, UCC-1
financing statements will be filed with respect to the related Subsequent
Contracts to continue and maintain the Trust's perfection therein. The Agreement
permits the Servicer with the consent of the Insurer (such consent not to be
unreasonably withheld) to hold the Contracts on behalf of the Trustee and the
Insurer after the filing of UCC-1 financing statements relating to the
perfection of the Trust's security interest in the Contracts. Accordingly, if
Onyx or the Seller sell and deliver a Contract to another purchaser, there is a
risk that the purchaser could acquire an interest in the Contract superior to
the interest of the Trust and the Certificateholders. Onyx will agree in the
Agreement to take all necessary action to preserve and protect the Trust's
ownership interest in the Contracts. The Seller will represent that each
Contract is secured by a Financed Vehicle. After a Contract is purchased or
originated by Onyx and the appropriate application is processed by the
department of motor vehicles or similar state agency responsible for vehicle
records in the state in which the Contract was originated, the certificate of
title (or computerized title record in the case of Contracts originated in
California, for which there will be no paper certificates) to the Financed
Vehicle securing the Contract shows Onyx as the secured party holding a lien in
the Financed Vehicle. When the Contracts are sold to the Seller and then to the
Trust, Onyx remains the secured party named on the related certificates of title
(or computerized title records in the case of Contracts originated in
California), and such certificates (or electronic records) are not endorsed or
otherwise marked to identify the Trustee as secured party, due to the
administrative burden and expense of applying to the department of motor
vehicles or similar state agency in each of the states of Contract origination
to identify
 
                                       11
<PAGE>   13
 
the Trustee as secured party, and because retaining Onyx's name as secured party
enables Onyx to more efficiently service the Contracts. Even though the Trust is
not identified as secured party, because the Trust has a security interest in
the Contracts, it is the beneficial owner of the security interest in the
related Financed Vehicles. There exists a risk, however, in not identifying the
Trust as the new secured party on the certificate of title (or computerized
title record) that, through fraud or negligence, the security interest of the
Trust could be released. Moreover, statutory liens for repairs or unpaid taxes
may have priority even over perfected security interests in the Financed
Vehicles. Notwithstanding the failure of the Trust to have obtained a valid,
first priority security interest in a Financed Vehicle, the Insurer will remain
unconditionally and irrevocably obligated on its guarantee of the Interest
Distribution and the Principal Distribution on each Distribution Date. See
"Certain Legal Aspects of the Contracts."
 
CERTAIN LEGAL ASPECTS -- BANKRUPTCY CONSIDERATIONS
 
     It is intended by Onyx and the Seller that the transfer of the Contracts by
Onyx to the Seller constitute a "true sale" of the Contracts to the Seller. If
the transfer constitutes such a "true sale," the Contracts and the proceeds
thereof would not be part of Onyx's bankruptcy estate should it become the
subject of a bankruptcy case subsequent to the transfer of the Contracts to the
Seller.
 
     The Seller has taken steps in structuring the transactions contemplated
hereby that are intended to ensure that the voluntary or involuntary application
for relief by Onyx under the United States Bankruptcy Code or similar state laws
("Insolvency Laws") will not result in consolidation of the assets and
liabilities of the Seller with those of Onyx. These steps include the creation
of the Seller as a separate, limited purpose subsidiary pursuant to a
certificate of incorporation containing certain limitations (including
restrictions on the nature of the Seller's business and a restriction on the
Seller's ability to commence a voluntary case or proceeding under any Insolvency
Law without the prior unanimous affirmative vote of all of its directors).
However, there can be no assurance that the activities of the Seller would not
result in a court concluding that the assets and liabilities of the Seller
should be consolidated with those of Onyx in a proceeding under any Insolvency
Law. If a court were to reach such a conclusion, then delays in distributions on
the Certificates could occur or reductions in the amounts of such distributions
could result. Notwithstanding the holding by a court that the assets and
liabilities of the Seller should be consolidated with those of Onyx in a
proceeding under any Insolvency Law, the Insurer will remain unconditionally and
irrevocably obligated on the Surety Bond to guarantee payment of the Interest
Distribution and Principal Distribution on each Distribution Date. See "The
Seller."
 
PREPAYMENT CONSIDERATIONS
 
   
     The rate of distribution of principal on the Certificates will depend on
the rate of payment (including prepayments, liquidations and repurchases by the
Seller or purchases by Onyx under certain conditions) on the Contracts which is
not possible to predict and, as discussed under "Mandatory Partial Prepayment"
immediately below, on whether sufficient additional Motor Vehicle Contracts are
generated for purchase with the Prefunded Amount before the end of the Funding
Period. Any full prepayments and repurchases of the Contracts can reduce the
average life of the Contracts and the aggregate interest received by the
Certificateholders over the life of the Certificates. Prepayments on Simple
Interest Contracts will shorten the average life of such Contracts and,
therefore, of the Certificates, because they will be passed through to
Certificateholders on the Distribution Date immediately following the Collection
Period in which such prepayments are received. Partial prepayments on Rule of
78's Contracts will be treated as Payaheads and accordingly will not affect the
average life of the Contracts because such payments will be held in the name of
Bankers Trust Company, acting on behalf of the Obligors and the
Certificateholders, as their interests may appear, until passed through in
accordance with the original schedule of payments for such Contracts. See "The
Certificates and Agreement -- Payahead Account."
    
 
     Onyx has limited historical experience with respect to prepayments, has not
as of the date hereof prepared data on prepayment rates, and is not aware of
publicly available industry statistics that set forth principal prepayment
experience for retail installment sales contracts similar to the Contracts. Onyx
can make no prediction as to the actual prepayment rates that will be
experienced on the Contracts in either stable or
 
                                       12
<PAGE>   14
 
changing interest rate environments. See "-- Limited Operating History of Onyx"
and "Maturity and Prepayment Assumptions." Certificateholders will bear all
reinvestment risk resulting from the rate of prepayment of the Contracts.
 
MANDATORY PARTIAL PREPAYMENT
 
     The rate of distribution of principal on the Certificates will in part
depend on whether sufficient additional Motor Vehicle Contracts are generated
for purchase with the Prefunded Amount before the end of the Funding Period. No
assurances can be given that sufficient Subsequent Contracts will be generated
to avoid Mandatory Partial Prepayment of the Certificates. In the event Onyx
does not generate, for purchase by the Trust, sufficient Subsequent Contracts to
avoid Mandatory Partial Prepayment of the Certificates, the weighted average
life of the Certificates will be shortened by any such Mandatory Partial
Prepayment under the circumstances described under "The Certificates and the
Agreement -- The Prefunding Account; Mandatory Partial Prepayment of the
Certificates." Certificateholders will bear all reinvestment risk resulting from
the payment of the Prefunded Amount due to Onyx's inability to generate
sufficient additional Motor Vehicle Contracts during the Funding Period.
 
     Upon the occurrence of a Mandatory Partial Prepayment, the holders of
Certificates will receive an amount equal to the portion of the Prefunded Amount
remaining in the Prefunding Account. It is anticipated that the aggregate
principal amount of Subsequent Contracts sold to the Trust during the Funding
Period will not be exactly equal to the Prefunded Amount and that therefore
there will be at least a nominal amount of principal prepaid to
Certificateholders.
 
GEOGRAPHIC CONCENTRATION
 
   
     Economic conditions in the states where the obligors under the Contracts
(each, an "Obligor") reside may affect the delinquency, loan loss and
repossession experience of the Trust with respect to the Contracts.
Approximately 60.37% of the Aggregate Scheduled Balance of the Initial Contracts
as of the Cut-Off Date will have been originated in California, 8.51% in
Arizona, 7.87% in Illinois, 7.04% in Florida, 6.60% in Washington and 5.21% in
Nevada. No other state represents more than 5.0% of the Initial Contracts.
Accordingly, adverse economic conditions or other factors particularly affecting
California, Arizona, Illinois, Florida, Washington or Nevada could adversely
affect the delinquency, loan loss or repossession experience of the Trust.
    
 
LIMITED ASSETS
 
     The Trust does not have, nor is it permitted or expected to have, any
significant assets or sources of funds other than the Contracts, amounts on
deposit in the Prefunding Account, the right to receive payments under the
Capitalized Interest Agreement (including from amounts on deposit in the
Capitalized Interest Account) and the right to receive payments under the Surety
Bond. The Certificates represent interests solely in the Trust and will not be
insured or guaranteed by the Seller, the Servicer, the Trustee or any other
person or entity except the Insurer. Consequently, holders of the Certificates
will only be able to look to payments on the Contracts and the Surety Bond for
payment.
 
RATING
 
     It is a condition of issuance of the Certificates that they be rated in the
highest rating category by two nationally recognized rating agencies. A security
rating is not a recommendation to buy, sell or hold securities and may be
revised or withdrawn at any time by the assigning rating agency. There can be no
assurance that a rating will not be lowered or withdrawn if, in the sole
judgment of a rating agency, circumstances in the future so warrant, including a
downgrading of the Insurer. The Seller cannot predict with certainty what effect
any revision or withdrawal of a rating may have on the liquidity or market value
of the Certificates. Such ratings of the Certificates address the likelihood of
the timely payment of each scheduled Interest Distribution and Principal
Distribution, which are guaranteed by the Insurer pursuant to the Surety Bond.
Therefore, the ratings are primarily dependent on the rating of the Insurer, and
a change in the Insurer's rating may affect the ratings of the Certificates. See
"Description of the Insurer" for a description of the Insurer's rating.
 
                                       13
<PAGE>   15
 
CONSUMER PROTECTION LAWS
 
     The Contracts are subject to federal and state consumer protection laws
which impose requirements with respect to the making, transfer, acquisition,
enforcement and collection of consumer loans. Such laws, as well as any new laws
or rules which may be adopted, may adversely affect the Servicer's ability to
collect on the Contracts. Any failure by the originator thereof to have
complied, or the Servicer to comply, with such requirements could adversely
affect the enforceability of the Contracts. The Seller will make representations
and warranties relating to the validity and enforceability of the Contracts and
its compliance with applicable law in connection with its performance of the
transactions contemplated by the Agreement. Pursuant to the Agreement, if the
Trust's interest in a Contract is materially and adversely affected by the
failure of such Contract to comply with the applicable requirements of any
consumer protection law, such Contract will be repurchased by the Seller. The
sole remedy if any such representation or warranty is not complied with and such
noncompliance continues beyond the applicable cure period is that the Contracts
affected thereby will be required to be repurchased by the Seller. See "The
Certificates and the Agreement -- Repurchase of Contracts" and "Certain Legal
Aspects of the Contracts -- Repurchase Obligation."
 
                                   THE TRUST
 
   
     Pursuant to the Agreement, the Seller will establish the Onyx Acceptance
Grantor Trust 1997-4 (the "Trust") by selling and assigning the following
property (the "Trust Property") to Bankers Trust Company in its capacity as
trustee of the Trust (the "Trustee") in exchange for the Certificates executed
and authenticated by the Trustee: (i) the Contracts purchased from the Seller
and secured by Financed Vehicles, (ii) certain documents relating to the
Contracts, (iii) certain monies due under the Contracts on or after the Cut-Off
Date (or, in the case of Subsequent Contracts, on or after the related
Subsequent Transfer Date), (iv) security interests in the Financed Vehicles and
the rights to receive proceeds from claims on certain insurance policies
covering the Financed Vehicles or the Obligors and the right to certain proceeds
under the Blanket Insurance Policy, (v) all amounts on deposit in the Collection
Account, including all Eligible Investments credited thereto (but excluding any
income on Eligible Investments, which will be paid to the Servicer), (vi) the
right of the Seller under the Purchase Agreement (as defined under "the Seller")
to cause Onyx to repurchase certain Contracts under certain circumstances, (vii)
the rights of the Seller under the Capitalized Interest Agreement (including the
Seller's interest in amounts on deposit in the Capitalized Interest Account),
(viii) funds on deposit in the Prefunding Account, and (ix) all proceeds of the
foregoing. The Trust Property will also include the benefits of the Surety Bond
of the Insurer, proceeds of which will be available to the Trustee in the event
collections from Obligors are insufficient to pay the Interest Distributions and
Principal Distributions to Certificateholders and unpaid principal and interest
on the Certificates on the Final Distribution Date. Each Certificate will
represent a fractional undivided interest in the Trust.
    
 
     The Trust will be formed for this transaction pursuant to the Agreement
and, prior to formation, will have had no assets or obligations. After
formation, the Trust will not engage in any activity other than acquiring and
holding the Contracts, issuing the Certificates, distributing payments thereon
and as otherwise described herein and as provided in the Agreement. The Trust
will not acquire any Motor Vehicle Contracts or assets other than the Subsequent
Contracts and Subsequent Financed Vehicles described herein and will not have
any need for additional capital resources.
 
                 THE ONYX PORTFOLIO OF MOTOR VEHICLE CONTRACTS
 
PURCHASE AND ORIGINATION OF MOTOR VEHICLE CONTRACTS
 
   
     Onyx's portfolio of retail installment sales contracts and installment loan
agreements are secured by new and used automobile and light-duty trucks ("Motor
Vehicle Contracts"). The Initial Contracts were, and the Subsequent Contracts
will be, originated by Dealers and purchased by Onyx, except for a limited
number of Contracts which were or will have been originated by Onyx itself. All
of the Initial Contracts were, and all Subsequent Contracts will have been, sold
to the Seller and then to the Trust. Onyx currently has agreements with over
2,300 Dealers, of which approximately 95.5% are franchised new car dealerships
and approximately 4.5% are independent used car dealerships. The Dealers are
located in metropolitan areas in the states in which the Contracts are or will
be originated, which are California, Arizona, Washington, Oregon, Florida,
Georgia, Nevada, Illinois, Indiana, Idaho, Colorado, New York, Utah and
Virginia. Each Dealer from which
    
 
                                       14
<PAGE>   16
 
Onyx purchases Contracts has entered into an agreement with Onyx whereby the
Dealer represents that it will comply with federal and state laws regarding
motor vehicle financing, that the Dealer will obtain the requisite financial
information required of the Obligor in order to extend credit, and that the
Dealer will truthfully disclose to Onyx such financial information, the identity
of the Obligor and other information in connection with the loan transaction.
The Dealers with whom Onyx has agreements and Dealers with whom Onyx would like
to have agreements are regularly contacted by Onyx account managers by telephone
and in person in an effort to obtain a continued supply of Motor Vehicle
Contracts for Onyx to purchase. Before purchasing Contracts from independent
used car Dealers, Onyx completes a credit review of the Dealer's financial
condition (including a review of financial information provided by the Dealer
and a Dun & Bradstreet report on the Dealer) and a review of the underwriting
criteria used by the Dealer.
 
   
     Approximately 60.37% of the Aggregate Scheduled Balance of the Initial
Contracts as of the Cut-Off Date will have been originated in California, 8.51%
in Arizona, 7.87% in Illinois, 7.04% in Florida, 6.60% in Washington and 5.21%
in Nevada. No other state represents more than 5.0% of the Initial Contracts.
See "Risk Factors -- Geographic Concentration." The payment obligations of the
Obligor under each Motor Vehicle Contract are secured by the vehicle purchased
with the loan proceeds provided under that Motor Vehicle Contract (the "Financed
Vehicles").
    
 
     Onyx services all of the Motor Vehicle Contracts and initially will serve
as the primary servicer after the Motor Vehicle Contracts are sold by the Seller
to the Trust. The servicing functions performed by Onyx include customer
service, document filekeeping, computerized account recordkeeping, vehicle title
processing and collections.
 
UNDERWRITING OF MOTOR VEHICLE CONTRACTS
 
   
     Onyx underwrites the Motor Vehicle Contracts through its ten regional
contract purchasing offices (each, an "Auto Finance Center"), five of which are
in California and one in each of Arizona, Florida, Nevada, Washington and
Illinois. Motor Vehicle Contracts purchased from Oregon and Idaho are currently
underwritten in the Washington Auto Finance Center, Motor Vehicle Contracts
purchased from Indiana are underwritten in the Illinois Auto Finance Center,
Motor Vehicle Contracts purchased from Georgia are underwritten in the Florida
Auto Finance Center, Motor Vehicle Contracts purchased from Colorado and Utah
are underwritten in the Nevada Auto Finance Center and Motor Vehicle Contracts
purchased from New York and Virginia are currently underwritten in the Irvine
Auto Finance Center. Each Motor Vehicle Contract is fully amortizing and
provides for level payments over its term with the portion of principal and
interest of each level payment determined either on the basis of the Rule of
78's or the Simple Interest Method. See "The Contracts."
    
 
     To evaluate the potential purchase of a Motor Vehicle Contract, Onyx
reviews the application package received from the Dealer originating the Motor
Vehicle Contract, or in the case of Contracts originated by Onyx, the
application package received from the Obligor, that sets forth the Obligor's
income, liabilities, credit and employment history, and other personal
information, as well as a description of the Financed Vehicle that secures the
Motor Vehicle Contract. The credit applications do not consist of forms provided
by Onyx. However, at the time a Dealer underwrites a Motor Vehicle Contract,
Onyx reviews the related application for completeness and for compliance with
Onyx's underwriting guidelines and applicable federal and state consumer
statutes and regulations. To evaluate credit applications, Onyx reviews
information in the application and from credit bureau reports obtained by Onyx.
 
     Each proposed Motor Vehicle Contract is evaluated using uniform
underwriting standards developed by Onyx. These underwriting standards are
intended to assess the Obligor's ability to repay all amounts due under the
Motor Vehicle Contract and the adequacy of the Financed Vehicle as collateral,
based upon a review of the information contained in the Motor Vehicle Contract
application. Among the criteria considered by an Onyx credit manager in
evaluating the individual applications are (i) stability of the Obligor with
specific regard to the Obligor's occupation, length of employment and length of
residency, (ii) the Obligor's payment history based on information known
directly by Onyx or as provided by various credit reporting agencies with
respect to present and past debt, (iii) a debt service-to-gross monthly income
ratio test, and (iv) the principal amount of the Motor Vehicle Contract taking
into account the age, type and market value of the Financed
 
                                       15
<PAGE>   17
 
Vehicle. The general policy of Onyx has been not to allow an Obligor's debt
service-to-gross monthly income ratio to exceed 45%.
 
     After review of an application, an Onyx credit manager, via an electronic
system utilized by Onyx, communicates an appropriate decision to the Dealer, or
by telephone or otherwise to the Obligor in the case of Motor Vehicle Contracts
originated by Onyx, specifying approval (subject to the receipt of the required
documentation), denial or a counter-offer on the proposed Motor Vehicle
Contract. If the response to the Dealer or Obligor requires stipulations to the
approval, (including an additional downpayment, reduction in the term of the
financing, or the addition of a co-signer to the Motor Vehicle Contract), these
are communicated concurrently to the Dealer or Obligor, and become a condition
of the approval. Subsequent to approval, the Dealer will (if Onyx is the chosen
source of financing) forward the necessary documentation to Onyx, which consists
of the following: (i) a signed application; (ii) the only original and a copy of
the executed contract; (iii) an agreement by the Obligor to provide insurance;
(iv) a report of sale or guarantee of title; (v) an application for
registration; (vi) a co-signer notification (if applicable); (vii) a copy of any
supplemental warranty purchased with respect to the Financed Vehicle; (viii)
vehicle valuation documentation acceptable to Onyx; and (ix) any other required
documentation.
 
     Once the appropriate documentation is in hand for funding, the file
relating to the Motor Vehicle Contract is ready to forward to an Onyx contract
processor for a pre-funding audit. The contract processor then audits such
documents for completeness and consistency with the application, providing final
approval for purchase of the Motor Vehicle Contract once these requirements have
been satisfied (subject to the receipt of the required documentation).
 
     The amount advanced by Onyx under any Motor Vehicle Contract does not
exceed (i) for a new Financed Vehicle, the manufacturer's suggested retail price
plus taxes, title and license fees, extended warranty (if any) and credit
insurance, or (ii) for a used Financed Vehicle, the value assigned by a
nationally recognized used car value guide, plus taxes, title and license fees
and extended warranty (if any). However, the actual amount advanced for a Motor
Vehicle Contract is often less than the maximum permissible amount depending on
a number of factors, including the length of the Motor Vehicle Contract term and
the model and year of the Financed Vehicle. These adjustments are made to assure
that the Financed Vehicle constitutes adequate collateral to secure the Motor
Vehicle Contract. Under no circumstances is the amount advanced for a Motor
Vehicle Contract greater than the amount payable by the Obligor with respect to
the purchase of the Financed Vehicle.
 
     Periodically, Onyx makes a detailed analysis of its portfolio of Motor
Vehicle Contracts to evaluate the effectiveness of Onyx's credit guidelines. If
external economic factors, credit delinquencies or credit losses change, Onyx
adjusts its credit guidelines to maintain the asset quality deemed acceptable by
Onyx's management. Onyx reviews, on a daily basis, the quality of its Motor
Vehicle Contracts by conducting audits of certain randomly selected Motor
Vehicle Contracts to ensure compliance with established policies and procedures.
 
INSURANCE
 
     Each related Motor Vehicle Contract requires the Obligor to obtain
comprehensive and collision insurance with respect to the related Financed
Vehicle with Onyx as a loss payee. Onyx does not presently track whether
Obligors maintain the required insurance. To protect against losses with respect
to Obligors who do not obtain or maintain any insurance, or who do not obtain or
maintain the right type or level of insurance, Onyx has purchased limited
comprehensive and collision insurance, referred to as the "Blanket Insurance
Policy" coverage. The Blanket Insurance Policy provides Onyx with protection on
each uninsured or underinsured Financed Vehicle against total loss, damage or
theft. Onyx has obtained its Blanket Insurance Policy from United Financial
Casualty Company, which is rated "A" by A.M. Best & Co. For the Blanket
Insurance Policy, Onyx is assessed a premium based on each Motor Vehicle
Contract acquired. The insurer under the Blanket Insurance Policy is required to
settle any claim complying with the policy conditions within 60 days from the
date reported. Onyx has paid the premium for the Blanket Insurance Policy
allocable to each Initial Contract sold to the Trust prior to such Initial
Contract's sale to the Trust and will pay the premium at
 
                                       16
<PAGE>   18
 
each Subsequent Transfer Date for the Subsequent Contracts. The proceeds under
the Blanket Insurance Policy, to the extent they relate to any Contract, will
constitute part of the Trust Property.
 
COLLECTION PROCEDURES
 
     Collection activities with respect to delinquent Motor Vehicle Contracts
are performed by Onyx at its Irvine collection center. Collection activities
include prompt investigation and evaluation of the causes of any delinquency. An
Obligor is considered delinquent when he or she has failed to make a scheduled
payment under the Motor Vehicle Contract within 30 days of the related due date
(each, a "Due Date").
 
     To automate its collection procedures, Onyx uses features of the computer
system of its third party service bureau, Online Computer Systems, Inc. ("OCS")
to provide tracking and notification of delinquencies. The collection system
provides relevant Obligor information (for example, current addresses, phone
numbers and loan information) and records of all Motor Vehicle Contracts. The
system also records an Obligor's promise to pay and affords supervisors the
ability to review collection personnel activity and to modify collection
priorities with respect to Motor Vehicle Contracts. Onyx utilizes a predictive
dialing system centrally located within its Irvine headquarters to make phone
calls to Obligors whose payments are past due by more than eight days but less
than 30 days. The predictive dialer is a computer-controlled telephone dialing
system which dials phone numbers of Obligors from a file of records extracted
from Onyx's database. By eliminating time wasted on attempting to reach
Obligors, the system gives a single collector, on average, the ability to speak
with and work 250 to 300 accounts per day. Once a live voice responds to the
automated dialer's call, the system automatically transfers the call to a
collector and the relevant account information to the collector's computer
screen. The system also tracks and notifies collection management of phone
numbers that the system has been unable to reach within a specified number of
days, thereby promptly identifying for management all Obligors who cannot be
reached by telephone.
 
     Once an Obligor is 20 days or more delinquent, those accounts are assigned
to specific collectors at the Irvine collection center who have primary
responsibility for such delinquent account until it is resolved. To expedite
collections from late paying Obligors, Onyx uses Western Union "Quick Collect,"
which allows an Obligor to pay at numerous locations any late payments and Onyx
to print at its Irvine headquarters a check evidencing the payment. Onyx also
uses an automatic payment system that allows an Obligor to authorize Onyx to
present a draft on the Obligor's bank account directly to the Obligor's bank for
payment to Onyx.
 
   
     Generally, after a scheduled payment under a Motor Vehicle Contract
continues to be past due for between 45 and 60 days, Onyx will initiate
repossession of the Financed Vehicle. However, if a Motor Vehicle Contract is
deemed uncollectible, if the Financed Vehicle is deemed by collection personnel
to be in danger of being damaged, destroyed or made unavailable for
repossession, or if the Obligor voluntarily surrenders the Financed Vehicle,
Onyx may repossess it without regard to the length or existence of payment
delinquency. Repossessions are conducted by third parties who are engaged in the
business of repossessing vehicles for secured parties. Under the laws of
California and the other states in which the Contracts were or will be
originated, after repossession the Obligor generally has an additional period of
up to 15 days to redeem the Financed Vehicle before the Financed Vehicle may be
resold by Onyx in an effort to recover the balance due under the Motor Vehicle
Contract.
    
 
     Losses may occur in connection with delinquent Motor Vehicle Contracts and
can arise in several ways, including inability to locate the Financed Vehicle or
the Obligor, or because of a discharge of the Obligor in a bankruptcy
proceeding. The current policy of Onyx is to recognize losses at the time a
Motor Vehicle Contract is deemed uncollectible or during the month a scheduled
payment under a Motor Vehicle Contract becomes 120 days or more past due,
whichever occurs first.
 
     Upon repossession and sale of the Financed Vehicle, any deficiency
remaining is pursued against the Obligor to the extent deemed practical by Onyx
and to the extent permitted by law. The loss recognition and collection policies
and practices of Onyx may change over time in accordance with Onyx's business
judgment. However, the Agreement requires that Onyx service the Contracts and
collect all amounts due using reasonable care and in at least the same manner as
it services and collects amounts due with respect to Motor Vehicle Contracts
serviced by it for its own account.
 
                                       17
<PAGE>   19
 
MODIFICATIONS AND EXTENSIONS
 
     Onyx offers certain credit-related extensions to Obligors. Generally, these
extensions are offered only when (i) Onyx believes that the Obligor's financial
difficulty has been resolved or will no longer impair the Obligor's ability to
make future payments, (ii) the extension will result in the Obligor's payments
being brought current, (iii) the total number of credit-related extensions
granted on the Motor Vehicle Contract will not exceed three and the total
credit-related extensions granted on the Motor Vehicle Contract will not exceed
three months in the aggregate, (iv) there have been no more than two
credit-related extensions granted on the Motor Vehicle Contract in the
immediately preceding twelve months, and (v) Onyx (or its assignee) had held the
Motor Vehicle Contract for at least six months. Any deviation from this policy
requires the concurrence of Onyx's collection manager and an Auto Finance Center
manager.
 
DELINQUENCY AND LOAN LOSS INFORMATION
 
     The following tables set forth information with respect to the experience
of Onyx relating to delinquencies, loan losses and recoveries for the portfolio
of Motor Vehicle Contracts owned and serviced by Onyx on an annual basis
commencing December 31, 1994. The tables include delinquency information
relating to those Motor Vehicle Contracts that were purchased, originated, sold
and serviced by Onyx. All of the Motor Vehicle Contracts were originally
purchased by Onyx from Dealers or originated by Onyx itself in accordance with
credit underwriting criteria established by Onyx. In February 1994, Onyx
commenced its operations as a purchaser and servicer of motor vehicle retail
installment sales contracts. Thus, Onyx has historical performance for only a
limited time period with respect to the Motor Vehicle Contracts it purchases and
originates and thus delinquencies and loan losses may increase from existing
levels in the portfolio with the passage of time. Delinquency and loan loss
experience may be influenced by a variety of economic, social and other factors.
See "Risk Factors."
 
   
     The delinquency and loss levels of the Motor Vehicle Contracts in Onyx's
portfolio at December 31, 1996 and September 30, 1997 were higher than in prior
periods due generally to the seasoning of such contracts. In addition, the
increase in delinquency and loss levels at December 31, 1996 and September 30,
1997 were influenced by disproportionately high delinquency and loss levels of
the Motor Vehicle Contracts originated through the third quarter of 1996 through
Onyx's North Hollywood Auto Finance Center. The North Hollywood Auto Finance
Center had a higher concentration of used car dealerships than Onyx's other Auto
Finance Centers, and this concentration of used car dealerships was principally
responsible for the deterioration in the performance of the portion of Onyx's
portfolio that was originated from July 1995 to September 1996. Onyx expects the
increase in delinquency and loss levels will continue through at least year end
1997.
    
 
     To address the performance issues of the North Hollywood Auto Finance
Center, management re-evaluated all used car dealerships from which Onyx
purchases Motor Vehicle Contracts to ensure that such dealerships met Onyx's
underwriting criteria, and Onyx terminated relationships with a majority of the
used car dealerships serviced by the Center.
 
     Management further enhanced the credit review process by promoting a senior
credit manager to the position of Chief Credit Officer and by increasing
staffing in the credit review department. This department continues to audit
contracts within a few days after funding. The results of the audits are
communicated back to the originating office on a daily basis.
 
     In addition, during the fourth quarter of 1996 and first quarter of 1997
management further enhanced the collections process by completing the
centralization of collections at Onyx's Irvine headquarters and hiring a manager
with over 25 years of collections experience to head the department. Collections
were previously handled at each of Onyx's Auto Finance Centers, each of which
was responsible for collections in certain geographic areas. Centralized
collections is intended to reduce cost and enhance effectiveness by enabling
personnel to specialize in specific stages of the collections process, rather
than focusing on specific geographic areas. For example, a collections officer
previously working at a regional Auto Finance Center might have focused on a
particular geographic region and covered all stages of collections (e.g., from
delinquencies through bankruptcies). In the centralized collections operation,
this officer might cover all geographic areas, but focus on a particular stage
of collections (e.g., 60-day delinquencies).
 
                                       18
<PAGE>   20
 
        DELINQUENCY EXPERIENCE OF ONYX MOTOR VEHICLE CONTRACT PORTFOLIO
                             (DOLLARS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                        AT DECEMBER 31,      AT DECEMBER 31,       AT DECEMBER 31,       AT SEPTEMBER 30,
                             1994                  1995                  1996                  1997
                       -----------------    ------------------    ------------------    ------------------
                       AMOUNT      NO.       AMOUNT      NO.       AMOUNT      NO.       AMOUNT      NO.
                       -------    ------    --------    ------    --------    ------    --------    ------
<S>                    <C>        <C>       <C>         <C>       <C>         <C>       <C>         <C>
Servicing portfolio... $74,581     6,893    $218,207    20,156    $400,665    38,275    $649,563    62,977
Delinquencies
  30-59 days(1)(2).... $    15         2    $  1,608       153    $  5,022       478    $  9,467       974
  60-89 days(1)(2)....      27         4         470        35       1,816       162       2,904       296
  90+ days(1)(2)......      12         1         547        42       1,279       111       2,920       264
Total delinquencies as
  a percent of
  servicing
  portfolio...........     .07%      .10%       1.20%     1.14%       2.03%     1.96%       2.35%     2.44%
</TABLE>
 
- ---------------
(1) Delinquencies include principal amounts only, net of repossessed inventory.
    Repossessed inventory as a percent of the servicing portfolio was .00%,
    .24%, .56% and 1.05% at December 31, 1994, 1995, 1996 and at September 30,
    1997, respectively.
 
(2) The period of delinquency is based on the number of days payments are
    contractually past due.
 
                   LOAN LOSS EXPERIENCE FOR THE PERIODS ENDED
                             (DOLLARS IN THOUSANDS)
 
   
<TABLE>
<CAPTION>
                                                          YEAR ENDED                  NINE MONTHS
                                               ---------------------------------         ENDED
                                                DEC.                                 -------------
                                                 31,       DEC. 31,     DEC. 31,     SEPTEMBER 30,
                                                1994         1995         1996           1997
                                               -------     --------     --------     -------------
<S>                                            <C>         <C>          <C>          <C>
Number of Motor Vehicle Contracts
  outstanding.................................   6,893       20,156       38,275          62,977
Period end outstanding........................ $74,581     $218,207     $400,665       $ 649,563
Average outstanding...........................  29,301      141,029      311,340         518,898
Number of gross charge-offs...................       0          197          987           1,466
Gross charge-offs............................. $     0     $  548.2     $5,789.2       $   8,987
Net charge-offs(1)............................ $     0     $  528.7     $5,066.1       $   7,881
Net charge-offs as a percent of period end
  outstanding.................................     0.0%         .24%        1.26%           1.62%(2)
Net charge-offs as a percent of average
  outstanding.................................     0.0%         .37%        1.63%           2.03%(2)
</TABLE>
    
 
- ---------------
(1) Net charge-offs are gross charge-offs minus recoveries of Motor Vehicle
    Contracts previously charged off.
 
(2) Annualized.
 
                                       19
<PAGE>   21
 
                                 THE CONTRACTS
 
   
     All of the Contracts will have been purchased by the Seller from Onyx.
Substantially all of the Contracts will have been purchased by Onyx from new and
used car Dealers unaffiliated with Onyx or the Seller, and a limited number of
Contracts will have been originated by Onyx itself. See "The Onyx Portfolio of
Motor Vehicle Contracts." Each of the Contracts in the Trust (including each
Subsequent Contract) will be a fixed rate contract pursuant to which the
allocation of each payment between interest and principal is calculated using
the Rule of 78's or the Simple Interest Method. Approximately 42.39% of the
Aggregate Scheduled Balance of the Initial Contracts as of the Cut-Off Date
allocate interest and principal in accordance with the Rule of 78's (the "Rule
of 78's Contracts"), and approximately 57.61% in accordance with the Simple
Interest Method (the "Simple Interest Contracts"). Rule of 78's Contracts
provide for the payment by the Obligor of a specified total amount of payments,
payable in equal monthly installments, which total represents the principal
amount financed plus add-on interest in an amount calculated as if such Contract
were a self-amortizing, level-yield Contract bearing interest at a per annum
rate equal to the stated annual percentage rate as set forth in the Contract
("APR"). Under the Rule of 78's, the amount of each payment allocable to
interest on a Contract is determined by multiplying the total amount of add-on
interest payable over the term of the Contract by a fraction derived as
described below. The fraction used in the calculation of add-on interest earned
each month under a contract governed by the Rule of 78's has as its denominator
a number equal to the sum of a series of numbers representing the total number
of monthly payments due under the Contract. For example, with a Contract
providing for 12 payments, the denominator of each month's fraction will be 78,
the sum of a series of numbers from 1 to 12. The numerator of the fraction for a
given month is the number of payments remaining before giving effect to the
payment to which the fraction is being applied. Accordingly, in the example of a
twelve-payment Contract, the fraction for the first payment is 12/78, for the
second payment 11/78, for the third payment 10/78, and so on through the final
payment, for which the fraction is 1/78. The applicable fraction is then
multiplied by the total add-on interest payment over the entire term of the
Contract, and the resulting amount is the amount of add-on interest earned that
month. The difference between the amount of the monthly payment by the Obligor
and the amount of earned add-on interest calculated for the month is applied to
principal reduction.
    
 
     For Simple Interest Contracts, interest due is calculated on the Due Date
based on the actual principal balance of the Contract on that date (the "Simple
Interest Method"). For such Contracts, interest accrued as of the Due Date is
paid first, and then the remaining payment is applied to the unpaid principal
balance. Accordingly, if an Obligor pays the fixed monthly installment in
advance of the Due Date, the portion of the payment allocable to interest for
the period since the preceding payment will be less than it would be if the
payment were made on the Due Date, and the portion of the payment allocable to
reduce the principal balance will be correspondingly greater. Conversely, if an
Obligor pays the fixed monthly installment after its Due Date, the portion of
the payment allocable to interest for the period since the preceding payment
will be greater than it would be if the payment were made on the Due Date, and
the portion of the payment allocable to reduce the principal balance will be
correspondingly smaller. When necessary, an adjustment is made at the maturity
of the Contract to the scheduled final payment to reflect the larger or smaller,
as the case may be, allocations of payments to the amount financed under the
Contract as a result of early or late payments, as the case may be.
 
     The purchase price paid by the Trust for each Contract will reflect the
principal balance of such Contract as of the Cut-Off Date, calculated either
under the Rule of 78's or the Simple Interest Method. For each of the Contracts
the term "Cut-Off Date Scheduled Balance" means the principal balance of such
Contract as of the Cut-Off Date. For Rule of 78's Contracts a greater portion of
the early payments under a Contract is allocated to interest than would be the
case using the actuarial method. Therefore, the Cut-Off Date Scheduled Balance
of each Rule of 78's Contract exceeds the amount that would have been its
principal balance as of the Cut-Off Date if each Contract had been amortized
from origination under the actuarial method. The Trustee and the Servicer intend
to account for interest and principal on the Rule of 78's Contracts using the
actuarial method, but based on the Cut-Off Date Scheduled Balance. The remaining
payments due on a Rule of 78's Contract are not sufficient to amortize the
Cut-Off Date Scheduled Balance of such Contract at a yield equal to its APR.
Accordingly, in order to amortize the Cut-Off Date Scheduled
 
                                       20
<PAGE>   22
 
Balance over the remaining term of the Rule of 78's Contract using the actuarial
method of accounting, the Servicer will recompute the effective yield of such
Contract based on the remaining payments due and the Cut-Off Date Scheduled
Balance (such yield, stated as a per annum rate, the "Recomputed Yield") and
will allocate each payment of Monthly P&I between principal and interest on each
Rule of 78's Contract based on the Cut-Off Date Scheduled Balance and the
Recomputed Yield for such Contract (such method, the "Recomputed Actuarial
Method").
 
   
     The Initial Contracts were, and the Subsequent Contracts will be, selected
from the Motor Vehicle Contracts in the portfolio of Onyx using the following
criteria (the "Eligibility Requirements"). No selection procedures were used
with respect to the Initial Contracts and none will be used with respect to the
Subsequent Contracts that are adverse to the Certificateholders or the Insurer.
Approximately 22.47% of the Aggregate Scheduled Balance of the Initial Contracts
are secured by new Financed Vehicles and approximately 77.53% of the Aggregate
Scheduled Balance of the Initial Contracts are secured by used Financed
Vehicles. The Seller may not substitute other Motor Vehicle Contracts for the
Contracts at any time during the term of the Agreement.
    
 
     The Seller has represented that all of the Contracts included in the Trust
satisfy the following Eligibility Requirements:
 
   
          (a) Such Contracts are or will be secured by new or used automobiles
     or light-duty trucks;
    
 
          (b) Such Contracts have remaining maturities as of the Cut-Off Date or
     related Subsequent Transfer Dates, as applicable, of not more than 72
     months;
 
          (c) Such Contracts have or will have original maturities of not more
     than 72 months;
 
          (d) Such Contracts (i) are or will be fully-amortizing fixed rate
     contracts which provide for level scheduled monthly payments determined on
     the basis of the Rule of 78's or the Simple Interest Method (except for the
     last payment, which may be minimally different from the level payments) and
     (ii) have or will have yields (using the Recomputed Yield for the Rule of
     78's Contracts) that equal or exceed      %;
 
          (e) Such Contracts are or will be secured by Financed Vehicles that,
     as of the Cut-Off Date or related Subsequent Transfer Dates, as applicable,
     have not been repossessed without reinstatement;
 
          (f) Such Contracts have or will have no payment more than 30 days past
     due as of the Cut-Off Date or related Subsequent Transfer Dates, as
     applicable;
 
          (g) Such Contracts have or will have remaining principal balances as
     of the Cut-Off Date or related Subsequent Transfer Dates, as applicable of
     at least $500;
 
   
          (h) Such Contracts were or will be made to Obligors located in the
     states of Arizona, California, Colorado, Florida, Georgia, Idaho, Illinois,
     Indiana, Nevada, New York, Oregon, Utah, Virginia and Washington; and
    
 
          (i) As of the Cut-Off Date or related Subsequent Transfer Dates, as
     applicable, the Seller has not received notice that any of the related
     Obligors has filed for bankruptcy.
 
                                       21
<PAGE>   23
 
   
     Set forth below is data concerning the Initial Contracts originated prior
to the Cut-Off Date which, as of such date, had an Aggregate Scheduled Balance
of $155,914,168.
    
 
   
                      COMPOSITION OF THE INITIAL CONTRACTS
    
 
   
<TABLE>
      <S>                                                       <C>
      Aggregate principal balance.............................  $155,914,168
      Number of Initial Contracts.............................  12,974
      Average principal balance outstanding...................  $12,017.43
      Average original amount financed........................  $12,118.79
      Original amount financed (range)........................  $800.00 to $67,804.84
      Weighted average APR....................................  14.70%
      APR (range).............................................  7.90% to 39.99%
      Weighted average original term..........................  57.3 months
      Original term (range)...................................  12 to 72 months
      Weighted average remaining term.........................  56.4 months
      Remaining term (range)..................................  8 to 72 months
</TABLE>
    
 
                 DISTRIBUTION BY APRS OF THE INITIAL CONTRACTS
 
   
<TABLE>
<CAPTION>
                                                                                           % OF
                                            NUMBER OF       % OF                         AGGREGATE
                                             INITIAL       INITIAL       PRINCIPAL       SCHEDULED
                 APR RANGE(1)               CONTRACTS     CONTRACTS       BALANCE         BALANCE
    --------------------------------------  ---------     ---------     ------------     ---------
    <S>                                     <C>           <C>           <C>              <C>
    7.001% to 8.000%......................       103           .79%     $  1,779,363         1.14%
    8.001% to 9.000%......................       636          4.90        10,177,162         6.53
    9.001% to 10.000%.....................       850          6.55        12,451,540         7.99
    10.001% to 11.000%....................       827          6.37        11,482,107         7.36
    11.001% to 12.000%....................       777          5.99        10,702,393         6.86
    12.001% to 13.000%....................       884          6.81        11,595,447         7.44
    13.001% to 14.000%....................     1,123          8.66        14,506,153         9.30
    14.001% to 15.000%....................     1,210          9.33        15,088,951         9.68
    15.001% to 16.000%....................     1,115          8.59        13,274,378         8.51
    16.001% to 17.000%....................     1,005          7.75        11,732,382         7.52
    17.001% to 18.000%....................     1,096          8.45        12,004,791         7.70
    18.001% to 19.000%....................       676          5.21         7,092,703         4.55
    19.001% to 20.000%....................       662          5.10         6,600,206         4.23
    20.001% to 21.000%....................     1,299         10.01        12,982,761         8.33
    21.001% and over......................       711          5.49         4,443,831         2.85
                                              ------        ------      ------------       ------
              Totals......................    12,974        100.00%     $155,914,168       100.00%
                                              ======        ======      ============       ======
</TABLE>
    
 
- ---------------
 
   
(1) Because the principal balance of each such Contract sold to the Trust is the
    Cut-Off Date Scheduled Balance, which in the case of Rule of 78's Contracts
    is higher than what the principal balance of the Rule of 78's Contracts
    would have been had principal and interest been allocated from the date of
    origination in accordance with the actuarial method, the Recomputed Yield
    for each Rule of 78's Contract is less than the APR of such Contract
    specified herein. On a weighted average basis, the yield for all the Initial
    Contracts, using the Recomputed Yield for the Rule of 78's Contracts, in the
    aggregate, is      %. See "The Contracts."
    
 
                                       22
<PAGE>   24
 
               GEOGRAPHIC CONCENTRATION OF THE INITIAL CONTRACTS
 
   
<TABLE>
<CAPTION>
                                                                                           % OF
                                            NUMBER OF       % OF                         AGGREGATE
                                             INITIAL       INITIAL       PRINCIPAL       SCHEDULED
                                            CONTRACTS     CONTRACTS       BALANCE         BALANCE
                                            ---------     ---------     ------------     ---------
    <S>                                     <C>           <C>           <C>              <C>
    Arizona...............................     1,090          8.40%     $ 13,272,275         8.51%
    California............................     7,710         59.43        94,118,540        60.37
    Colorado..............................        53          0.41           601,120         0.39
    Florida...............................       861          6.64        10,973,648         7.04
    Georgia...............................        45          0.35           616,790         0.40
    Idaho.................................         6          0.05            64,086         0.04
    Illinois..............................       943          7.27        12,270,557         7.87
    Indiana...............................       160          1.23         1,911,854         1.23
    Nevada................................       677          5.22         8,118,502         5.21
    New York..............................         3          0.02            21,876         0.01
    Oregon................................       386          2.98         3,612,670         2.32
    Utah..................................         1          0.01             3,180         0.00
    Virginia..............................         3          0.02            33,624         0.02
    Washington............................     1,036          7.99        10,295,447         6.60
                                              ------        ------      ------------       ------
              Total.......................    12,974        100.00%     $155,914,168       100.00%
                                              ======        ======      ============       ======
</TABLE>
    
 
                                       23
<PAGE>   25
 
                      MATURITY AND PREPAYMENT ASSUMPTIONS
 
     The Contracts are or will be prepayable in full by the Obligors at any time
without penalty. Prepayments on Simple Interest Contracts will be passed through
to Certificateholders on the Distribution Date following the Collection Period
in which they are received. Partial prepayments on Rule of 78's Contracts
however will be treated as Payaheads and will not be passed through until the
Collection Period in which such payments are due or until the amount of such
partial prepayment equals the amount the Obligor would be required to pay in
order to prepay the Contract in full. See "The Certificates and the
Agreement -- Payahead Account." To the extent that any Contract is prepaid in
full ("Full Prepayment") whether by the Obligor, or as the result of a purchase
by the Servicer or a repurchase by the Seller or otherwise, the actual weighted
average life of the Contracts will be shorter than a weighted average life
calculation based on the assumptions that payments will be made on schedule and
that no prepayments will be made. Weighted average life means the average amount
of time in which each dollar of principal on a Contract is repaid. Full
Prepayments may also result from liquidations due to default, receipt of
proceeds from theft, physical damage, credit life and credit disability
insurance policies, repurchases by the Seller as a result of the failure of a
Contract to meet certain criteria set forth in the Agreement, purchases by the
Servicer as a result of a breach of certain of its covenants with respect to the
Contracts made by it in the Agreement or as a result of an exercise by the
Servicer of its option to purchase the Trust Property. See "The Certificates and
the Agreement -- Repurchases of Contracts."
 
     In addition, the weighted average maturity of the Certificates will be
reduced to the extent that sufficient additional Motor Vehicle Contracts are not
generated for purchase by the Trust with the Prefunded Amount before the end of
the Funding Period, because any remaining Prefunded Amount will be included in
the Principal Distribution made to Certificateholders on the Distribution Date
at or immediately following the end of the Funding Period, but in no event later
than the April 15, 1998 Distribution Date. Although Onyx believes that
sufficient additional Motor Vehicle Contracts will be originated for purchase
with the Prefunded Amount by the end of the Funding Period, no assurances can be
given in that regard. Certificateholders will bear all reinvestment risk
resulting from prepayment of the Contracts. See "Risk Factors -- Prepayment
Considerations."
 
     The rate of Full Prepayments by Obligors on the Contracts may be influenced
by a variety of economic, social and other factors, including the fact that an
Obligor may not sell or transfer the Financed Vehicle securing a Contract
without the consent of the Servicer. These factors may also include
unemployment, servicing decisions, seasoning of loans, destruction of vehicles
by accident, sales of vehicles and market interest rates.
 
   
     California law and the law of some other states require that retail
installment sales contracts such as the Contracts permit full prepayment without
penalty. Any Full Prepayments reduce the average life of the Contracts. The
Servicer will permit the sale or other transfer of a Financed Vehicle without
accelerating the maturity of the related Contract if such Contract is assumed by
a person satisfying Onyx's then current underwriting standards. See "The Onyx
Portfolio of Motor Vehicle Contracts -- Underwriting of Motor Vehicle
Contracts."
    
 
     Onyx has limited historical experience with respect to prepayments, has not
as of the date hereof prepared data on prepayment rates, and is not aware of
publicly available industry statistics that set forth principal prepayment
experience for retail installment sales contracts similar to the Contracts. Onyx
can make no prediction as to the actual prepayment rates that will be
experienced on the Contracts in either stable or changing interest rate
environments. Certificate Owners will bear all reinvestment risk resulting from
the rate of prepayment of the Contracts.
 
                                       24
<PAGE>   26
 
                              YIELD CONSIDERATIONS
 
     Interest due will be passed through on each Distribution Date in an amount
equal to the product of one-twelfth of the Pass-Through Rate and the Pool
Balance as of the end of the Collection Period preceding the related Collection
Period (or the Original Pool Balance, in the case of the first Distribution
Date). In the event of a principal prepayment on a Contract during a Collection
Period, Certificateholders will receive interest for the full month on the
related Distribution Date. See "The Certificates and the Agreement --
Distributions of Principal and Interest."
 
     Although the Contracts have different APRs, the yield on each individual
Contract, using the Recomputed Yield for Rule of 78's Contracts, will equal or
exceed      %. Therefore, disproportionate rates of prepayments between
Contracts with higher and lower APRs will not affect the yield to
Certificateholders.
 
                                  POOL FACTOR
 
     The "Pool Factor" will be a six-digit decimal which the Servicer will
compute each month indicating the Pool Balance at the end of the month as a
fraction of the Original Pool Balance. The Pool Factor will be 1.000000 as of
the Closing Date; thereafter, the Pool Factor will decline to reflect reductions
in the Pool Balance. The amount of a Certificateholder's pro rata share of the
Pool Balance for a given month can be determined by multiplying the original
denomination of such holder's Certificate by the Pool Factor for that month.
 
     Pursuant to the Agreement, Certificateholders will receive monthly reports
from the Trustee concerning payments received on the Contracts, the Pool
Balance, the Pool Factor, and various other items of information.
Certificateholders of record during any calendar year will be furnished
information for tax reporting purposes not later than the latest date permitted
by law. See "The Certificates and the Agreement."
 
                                USE OF PROCEEDS
 
   
     The net proceeds to be received by the Seller from the sale of Certificates
will be used to repay certain indebtedness incurred in connection with its
acquisition of the Contracts, to fund the Prefunded Amount to permit the
purchase of Subsequent Contracts during the Funding Period and to pay certain
other expenses in connection with the pooling of the Contracts and the issuance
of the Certificates.
    
 
                                   THE SELLER
 
     The Seller is a wholly-owned, limited purpose finance subsidiary of Onyx
which was incorporated under the laws of the State of Delaware on July 28, 1994
and has a limited operating history. The principal office of the Seller is
located at 8001 Irvine Center Drive, 6th Floor, Irvine, CA 92618. The telephone
number of such office is (714) 753-1191.
 
     The Seller was organized principally for the purpose of purchasing retail
installment sales contracts from Onyx in connection with its activities as a
finance subsidiary of Onyx. The Seller was organized for limited purposes, and
its certificate of incorporation limits its activities to purchasing Contracts
from Onyx and transferring such Contracts to third parties and any activities
incidental to and necessary or convenient for the accomplishment of such
purposes.
 
     The Seller has taken steps in structuring the transactions contemplated
hereby that are intended to ensure that the voluntary or involuntary application
for relief by Onyx under any Insolvency Law will not result in consolidation of
the assets and liabilities of the Seller with those of Onyx. These steps include
the creation of the Seller as a separate, limited purpose subsidiary pursuant to
a certificate of incorporation containing certain limitations (including
restrictions on the nature of the Seller's business and a restriction on the
Seller's ability to commence a voluntary case or proceeding under any Insolvency
Law without the unanimous affirmative vote of all of its directors). However,
there can be no assurance that the activities of the Seller would not result in
a court concluding that the assets and liabilities of the Seller should be
consolidated with those of Onyx in a proceeding under any Insolvency Law.
 
                                       25
<PAGE>   27
 
     The Seller has received the advice of counsel to the effect that, subject
to certain facts, assumptions and qualifications, it would not be a proper
exercise by a court of its equitable discretion to disregard the separate
corporate existence of the Seller and to require the consolidation of the assets
and liabilities of the Seller with the assets and liabilities of Onyx in the
event of the application of any Insolvency Law to Onyx. However, there can be no
assurance that a court would not conclude that the assets and liabilities of the
Seller should be consolidated with those of Onyx. If a court were to reach such
a conclusion, or a filing were made under any Insolvency Law by or against the
Seller, or if an attempt were made to litigate any of the foregoing issues,
delays in distributions on the Certificates could occur or reductions in the
amounts of such distributions could result.
 
     The Contracts have been and will be sold by Onyx to the Seller from time to
time pursuant to a Sale and Servicing Agreement dated as of September 8, 1994,
as amended (the "Purchase Agreement"). The Initial Contracts were sold and the
Subsequent Contracts will be sold by the Seller to the Trust pursuant to the
Agreement. Onyx and the Seller intend that the transfer of the Contracts by Onyx
to the Seller under the Purchase Agreement constitute a "true sale" of the
Contracts to the Seller. If the transfer constitutes such a "true sale," the
Contracts and the proceeds thereof would not be part of the bankruptcy estate of
Onyx under Section 541 of the United States Bankruptcy Code (the "Bankruptcy
Code") should Onyx become the subject of a bankruptcy case subsequent to the
transfer of the Contracts to the Seller.
 
     The Seller has received the advice of counsel to the effect that, subject
to certain facts, assumptions and qualifications, in the event Onyx were to
become the subject of a voluntary or involuntary case under the Bankruptcy Code
subsequent to the transfer of the Contracts to the Seller, the transfer of the
Contracts by Onyx to the Seller pursuant to the Purchase Agreement would be
characterized as a "true sale" of the Contracts from Onyx to the Seller and the
Contracts and the proceeds thereof would not form part of Onyx's bankruptcy
estate pursuant to Section 541 of the Bankruptcy Code.
 
                                  THE SERVICER
 
   
     The Contracts initially will be serviced by Onyx Acceptance Corporation
("Onyx"). Onyx was incorporated in California in 1993 and reincorporated in
Delaware in 1996 in connection with its initial public offering of Common Stock
which was successfully completed in March 1996 and all stock offered in
connection with such public offering was sold. Onyx is engaged principally in
the business of providing indirect automobile financing to new car dealerships
and selected used car dealerships within California, and to an increasing degree
in other states across the country. Onyx has been in existence for over three
years and is headed by a management team with extensive experience in the
origination and servicing of indirect and direct automobile loans, and who, from
1985 to present, have actively participated in a number of public
securitizations of motor vehicle installment contracts.
    
 
   
     Onyx is headquartered in Irvine, California and operates ten Auto Finance
Centers, five in California and one in each of Arizona, Florida, Nevada,
Washington and Illinois. The California centers are located in: (i) Orange and
Metropolitan Los Angeles Counties, (ii) North Los Angeles and Ventura Counties,
(iii) the San Francisco Bay Area, (iv) Riverside and San Bernardino Counties,
(v) San Diego County, and (vi) Sacramento County. Through these offices, Onyx is
able to service the most populous California counties including Los Angeles,
Riverside, San Bernardino, Ventura, Orange, San Diego, San Francisco, Santa
Clara, Alameda, San Mateo, Santa Cruz, Marin, Contra Costa, and Sacramento
counties. In addition, Onyx services Oregon and Idaho through its Washington
center. The Arizona center is located in Phoenix, and is able to service the
Phoenix metropolitan and suburban areas. The Washington center is located in
Seattle and is able to service the Seattle metropolitan and suburban areas and
Oregon and Idaho. The Nevada center is located in Las Vegas and is able to
service the Las Vegas metropolitan and suburban areas as well as Colorado and
Utah. The Florida center is located in Deerfield Beach and is able to service
Florida and Georgia. The Illinois office is located in Rosemont and services the
Chicago metropolitan area and Indiana. All other states are currently serviced
by the Irvine office. Onyx currently has agreements with over 2,300 Dealers.
    
 
     Onyx acquires individual motor vehicle installment contracts from Dealers,
and to a lesser extent directly originates such contracts, after reviewing and
approving the customer's credit application in accordance with its underwriting
policies and procedures. See "The Contracts." Onyx has acquired motor vehicle
installment
 
                                       26
<PAGE>   28
 
contracts totaling approximately $1 billion from commencement of operations
through September 30, 1997. As of September 30, 1997, Onyx has amassed a
servicing portfolio of approximately $649.6 million. As of September 30, 1997,
approximately 84% of Onyx's servicing portfolio consisted of motor vehicle
installment contracts secured by used motor vehicles, and 16% secured by new
motor vehicles. As of September 30, 1997, Onyx had total assets of approximately
$128 million and stockholders' equity of $40 million.
 
     Onyx finances its acquisition of motor vehicle installment contracts on a
short term basis through a commercial paper conduit program and has previously
financed its acquisition of motor vehicle installment contracts on a long term
basis through sales of Contracts to grantor trusts.
 
                       THE CERTIFICATES AND THE AGREEMENT
 
     The Certificates will be issued pursuant to the Agreement, a form of which
has been filed as an exhibit to the Registration Statement of which this
Prospectus is a part. The following summaries of certain provisions of the
Agreement do not purport to be complete and are subject to, and qualified in
their entirety by reference to, the provisions of the Agreement. Where
particular provisions of or terms used in the Agreement are referred to, the
actual provisions (including definitions of terms) are incorporated by reference
as part of such summaries.
 
GENERAL
 
     The Certificates will be offered for purchase in minimum denominations of
$1,000 and integral multiples thereof, except that one Certificate may be issued
in a denomination that includes any residual portion of the Original Pool
Balance. Each Certificate will rank pari passu with each other Certificate. The
Certificates will initially be represented by one or more Certificates
registered in the name of Cede & Co. ("Cede"), as nominee of DTC, except as set
forth below. The interests of holders of beneficial interests in the
Certificates (each a "Certificate Owner") will be available for purchase in
denominations of $1,000 and integral multiples thereof in book-entry form only.
The Seller has been informed by DTC that DTC's nominee will be Cede.
Accordingly, Cede is expected to be the holder of record of the Certificates.
Unless and until Definitive Certificates are issued under the limited
circumstances described herein, no Certificate Owner will be entitled to receive
a certificate representing such person's interest in the Certificates. All
references herein to actions by Certificateholders shall refer to actions taken
by DTC upon instructions from its participating organizations (the
"Participants") and all references herein to distributions, notices, reports and
statements to Certificateholders shall refer to distributions, notices, reports
and statements to DTC or Cede, as the registered holder of the Certificates, as
the case may be, for distribution to Certificate Owners in accordance with DTC
procedures. See "The Certificates and the Agreement -- Book-Entry Registration"
and "-- Definitive Certificates."
 
DISTRIBUTIONS OF PRINCIPAL AND INTEREST
 
   
     On each Distribution Date, monthly interest due on the Contracts (the
"Interest Distribution") at a rate equal to the product of one-twelfth of the
Pass-Through Rate and the Pool Balance as of the end of the Collection Period
preceding the related Collection Period will be distributed on a pro rata basis
to the Certificateholders of record as of the related Record Date. The amount of
interest payable on the Certificates on the first Distribution Date will be
       per $1,000 dollars. The "Pool Balance" as of any date is the Aggregate
Scheduled Balance of the Contracts as of such date, excluding those Contracts
which as of such date have become Liquidated Contracts or have been repurchased
by the Seller or purchased by the Servicer, plus the amount, if any, remaining
on deposit in the Prefunding Account on such date (excluding investment earnings
thereon). Interest will be paid (i) to the extent of the portion of the Pool
Balance represented by Contracts, from collections received on the Contracts on
deposit in the Collection Account or previously collected and available for
distribution, and (ii) to the extent of the portion of the Pool Balance
represented by the Prefunded Amount from investment earnings thereon, and from
payments under the Capitalized Interest Agreement. A "Collection Period" with
respect to a Distribution Date will be the calendar month preceding the month in
which such Distribution Date occurs; provided, that with respect to Liquidated
Contracts the
    
 
                                       27
<PAGE>   29
 
Collection Period will be the period from but excluding the sixth Business Day
preceding the immediately preceding Distribution Date to and including the sixth
Business Day preceding such Distribution Date. With respect to the first
Distribution Date the "Collection Period" for Liquidated Contracts will be the
period from and including the Cut-Off Date to and including the sixth Business
Day preceding such first Distribution Date. Each Interest Distribution will be
calculated on the basis of a 360-day year consisting of twelve 30-day months.
Unless and until Definitive Certificates have been issued, distributions on each
Distribution Date will be made through the facilities of DTC and the related
"Record Date" will be the Business Day prior to such Distribution Date. If
Definitive Certificates are issued, the related "Record Date" will be the last
day of the calendar month preceding such Distribution Date. The final
distribution of principal of and interest on each Certificate will be made only
upon presentation and surrender of such Certificate on or after the Final
Distribution Date (or such earlier termination date as is provided by the
Agreement) at the office or agency of the Trustee maintained for that purpose.
 
   
     On each Distribution Date, the Principal Distribution for the related
Collection Period will be passed through to the Certificateholders. The
"Principal Distribution" on any Distribution Date will be an amount equal to the
Aggregate Scheduled Balance Decline during the related Collection Period and,
with respect to the Distribution Date immediately on or following the last day
of the Funding Period, any portion of the Prefunded Amount remaining on deposit
in the Prefunding Account. The Principal Distribution on the Final Distribution
Date will include the Aggregate Scheduled Balance of all Contracts that are
outstanding at the end of the Collection Period immediately prior to the Final
Distribution Date. The "Aggregate Scheduled Balance Decline" for any
Distribution Date will be the sum of (x) the amount by which the Aggregate
Scheduled Balance of the Contracts as of the beginning of the related Collection
Period exceeds the Aggregate Scheduled Balance of such Contracts as of the end
of the related Collection Period (excluding any Contracts added as Subsequent
Contracts during the related Collection Period) and (y) the amount by which the
Aggregate Scheduled Balance of the Subsequent Contracts (determined as of each
related Subsequent Transfer Date) transferred to the Trust during the related
Collection Period exceeds the Aggregate Scheduled Balance of such Contracts as
of the end of the related Collection Period. The "Aggregate Scheduled Balance"
of the Contracts is the sum of the Scheduled Balances of each Contract. The
"Scheduled Balance" of a Rule of 78's Contract at any date is equal to the
Cut-Off Date Scheduled Balance of such Contract reduced by the portion of each
scheduled payment of principal and interest due on such Contract (the "Monthly
P&I") on or prior to the date of calculation that is allocable to principal
under the Recomputed Actuarial Method. The Scheduled Balance of a Simple
Interest Contract at any date is equal to the Cut-Off Date Scheduled Balance of
such Contract reduced by the portion of Monthly P&I on or prior to the date of
calculation that is allocated to principal under the Simple Interest Method. The
Scheduled Balance of any Contract that is a Liquidated Contract or that has been
purchased by the Servicer or repurchased by the Seller will equal zero. A
"Liquidated Contract" is a Contract that (a) is the subject of a Full
Prepayment, (b) is a Defaulted Contract with respect to which Liquidation
Proceeds constituting, in the Servicer's reasonable judgment, the final amounts
recoverable have been received, (c) is paid in full on or after its Maturity
Date or (d) has been a Defaulted Contract for four or more Collection Periods
and as to which Liquidation Proceeds constituting the final amounts recoverable
have not been received; provided, however, that in any event a Contract that is
delinquent in the amount of five monthly payments at the end of a Collection
Period is a Liquidated Contract. A "Defaulted Contract" with respect to any
Collection Period is a Contract (a) which is, at the end of such Collection
Period, delinquent in the amount of two monthly payments or (b) with respect to
which the related Financed Vehicle has been repossessed or repossession efforts
have been commenced.
    
 
     The Monthly P&I for a Contract due on each Due Date is substantially equal
for the term of the Contract. The Scheduled Balance of each Contract as of the
Cut-Off Date, which will be treated as being equal to the Cut-Off Date Scheduled
Balance, will be set forth in a schedule to the Agreement. The yield of each
Contract (using the Recomputed Yield for Rule of 78's Contracts) will at least
equal      %.
 
     At the issuance of the Certificates, the initial aggregate principal amount
of the Certificates will equal the sum of the Aggregate Scheduled Balance of all
the Initial Contracts as of the Cut-Off Date plus the Prefunded Amount.
 
                                       28
<PAGE>   30
 
THE PREFUNDING ACCOUNT; MANDATORY PARTIAL PREPAYMENT OF THE CERTIFICATES
 
   
     The Prefunding Account.  The Servicer will establish an account in the name
of the Trustee for the benefit of the Certificateholders into which the
Prefunded Amount (which equals $10,085,832.00, or approximately 6% of the
Original Pool Balance) will be deposited on the Closing Date from the net
proceeds received from the sale of the Certificates and from which monies will
be released during the Funding Period to purchase Subsequent Contracts from the
Seller (the "Prefunding Account"). The Funding Period will be the period from
the Closing Date until the earliest to occur of (i) the date on which the
Prefunded Amount is less than $20,000, (ii) the date on which an Event of
Default occurs, or (iii) the close of business on March   , 1998, which is 90
days after the Closing Date.
    
 
   
     The Prefunding Account will be an Eligible Account. An "Eligible Account"
is (i) a trust account that is either (a) maintained by the Trustee, (b)
maintained with a depository institution or trust company the commercial paper
or other short-term debt obligations of which have credit ratings from Standard
& Poor's at least equal to "A-1" and from Moody's equal to "P-1," which account
is fully insured up to applicable limits by the Federal Deposit Insurance
Corporation or (c) maintained with a depository institution acceptable to the
Insurer or (ii) a general ledger account or deposit account at a depository
institution acceptable to the Insurer. The Prefunding Account will be part of
the Trust but monies on deposit therein will not be available to cover losses on
or in respect of the Contracts. Any portion of the Prefunded Amount remaining on
deposit in the Prefunding Account as of the end of the Funding Period will be
payable as described below as prepayment of principal to the Certificateholders.
Monies on deposit in the Prefunding Account may be invested in Eligible
Investments in the manner described in the Agreement. Earnings on investment of
funds in the Prefunding Account will be used, together with the Capitalized
Interest Amount paid under the Capitalized Interest Agreement, to pay the
Pass-Through Rate on the portion of the Pool Balance relating to the Prefunding
Account. The Trust will not be required to register under the Investment Company
Act of 1940.
    
 
     Upon each conveyance of Subsequent Contracts on each Subsequent Transfer
Date to the Trust, an amount equal to the purchase price paid by the Seller to
Onyx for such Subsequent Contracts on the related Subsequent Transfer Date will
be released from the Prefunding Account and paid to the Seller.
 
     Mandatory Partial Prepayment of the Certificates.  The Certificates will be
subject to partial Mandatory Partial Prepayment on the Distribution Date
immediately at or succeeding the date on which the Funding Period ends, to the
extent that any portion of the Prefunded Amount, exclusive of any investment
earnings thereon, remains on deposit in the Prefunding Account after giving
effect to the purchase by the Seller and conveyance to the Trust of any
Subsequent Contracts on the related Subsequent Transfer Dates, including any
such purchase and conveyance on the date on which the Funding Period ends.
 
   
     Upon the occurrence of a Mandatory Partial Prepayment, the holders of
Certificates will receive an amount equal to the portion of the Prefunded Amount
remaining in the Prefunding Account. It is anticipated that the aggregate
principal amount of Subsequent Contracts purchased by the Trust and delivered to
the Trustee during the Funding Period will not be exactly equal to the Prefunded
Amount and that therefore there will be at least a nominal amount of principal
prepaid to Certificateholders.
    
 
CAPITALIZED INTEREST AGREEMENT AND CAPITALIZED INTEREST ACCOUNT
 
   
     Simultaneously with the sale and assignment of the Contracts by the Seller
to the Trust, Onyx and the Seller will enter into the Capitalized Interest
Agreement, pursuant to which Onyx will be obligated to pay the Capitalized
Interest Amount, if any, on or before five business days prior to each
Distribution Date, ending with the Distribution Date following the end of the
Funding Period. The Seller will assign its rights under the Capitalized Interest
Agreement to the Trust. The purpose of the Capitalized Interest Agreement is to
cover the shortfall between interest distributable on the portion of the Pool
Balance represented by the Prefunded Amount and interest which will be earned by
the Trust on the Prefunded Amount prior to the time it is used to purchase
Subsequent Contracts. The Capitalized Interest Agreement will be in effect from
the Closing Date until April 15, 1998, which is the Distribution Date following
the end of the Funding Period. Payments of the Capitalized Interest Amounts due
under the Capitalized Interest Agreement will be secured by funds on deposit in
a segregated trust deposit account (the "Capitalized Interest Account")
established in the name of
    
 
                                       29
<PAGE>   31
 
   
Bankers Trust Company, acting as agent for the benefit of the Certificateholders
and the Insurer (in such capacity, the "Capitalized Interest Agent"). The
Capitalized Interest Account will be an Eligible Account. Monies on deposit in
the Capitalized Interest Account may be invested in Eligible Investments in the
manner described in the Agreement.
    
 
   
     The amount required to be deposited in such Capitalized Interest Account on
the Closing Date will be the maximum aggregate Capitalized Interest Amounts that
may become owing under the Capitalized Interest Agreement, assuming that, with
respect to the Prefunded Amount during the Funding Period, a certain rate of
interest (set forth in the Agreement) is earned and no Subsequent Contracts are
acquired. The "Capitalized Interest Amount," with respect to any Distribution
Date for any Collection Period up through the last Collection Period in the
Funding Period, is an amount equal to (a) one month's interest on the Prefunded
Amount on deposit in the Prefunding Account as of the first day of such
Collection Period at the Pass-Through Rate plus (b) 1/12 of the premium for the
Surety Bond on the Prefunded Amount minus (c) the earnings received by the
Trustee during the related Collection Period from investment of the Prefunded
Amount on deposit in the Prefunding Account. On each Subsequent Closing Date, an
amount will be released to Onyx from the Capitalized Interest Account so that
the amount remaining in the account after such release will equal the maximum
Capitalized Interest Amount which could become owing during the remainder of the
Funding Period assuming that no additional Subsequent Contracts are conveyed to
the Trust. Any amounts remaining on deposit in the Capitalized Interest Account
after the Mandatory Partial Prepayment of that portion of the Prefunded Amount
not used to purchase Subsequent Contracts will be released to Onyx on the date
of such Mandatory Partial Prepayment.
    
 
THE SURETY BOND
 
     If on any Servicer Report Date the amount on deposit in the Collection
Account after giving effect to all amounts deposited to or payable from the
Payahead Account, the Prefunding Account or pursuant to the Capitalized Interest
Agreement (including from the Capitalized Interest Account) with respect to the
related Distribution Date, is less than the sum of the Servicing Fee, the
Principal Distribution and Interest Distribution for the related Distribution
Date, the Trustee by delivering a notice to the Insurer shall demand payment
under the Surety Bond in an amount equal to such deficiency. The Insurer shall
pay or cause to be paid such amount to the Trustee for credit to the Collection
Account. The Trustee shall withdraw from the Collection Account and shall pay
such amount to the Certificateholders on the related Distribution Date.
 
     If on the Business Day preceding the Final Distribution Date, any principal
amount of Certificates is still outstanding, then the Trustee shall demand
payment on the Surety Bond in an amount equal to the amount by which the
outstanding principal amount of the Certificates, plus interest thereon at the
Pass-Through Rate, exceeds the amount on deposit in the Collection Account which
is available for distribution on the Final Distribution Date. The Insurer shall
pay or cause to be paid such amount to the Trustee pursuant to the Trustee's
instructions for credit to the Collection Account and on the Final Distribution
Date, the Trustee shall withdraw from the Collection Account and shall pay such
amount to the Certificateholders.
 
BOOK-ENTRY REGISTRATION
 
     Certificateholders may hold their Certificates through DTC if they are
participants of such system, or indirectly through organizations which are
participants ("Participants") in such system.
 
     Cede, as nominee for DTC, will hold one or more global Certificates.
Transfers between Participants will occur in the ordinary way in accordance with
DTC rules.
 
     DTC is a limited-purpose trust company organized under the laws of the
State of New York, a member of the Federal Reserve System, a "clearing
corporation" within the meaning of the New York UCC, and a "clearing agency"
registered pursuant to the provisions of Section 17A of the Exchange Act. DTC
was created to hold securities for its Participants and facilitate the clearance
and settlement of securities transactions between Participants through
electronic book-entry changes in accounts of its Participants, thereby
eliminating the need for physical movement of certificates. Participants include
securities brokers and dealers, banks, trust companies and clearing corporations
and may include certain other organizations (including the
 
                                       30
<PAGE>   32
 
Underwriter). Indirect access to the DTC system also is available to others such
as banks, brokers, dealers and trust companies that clear through or maintain a
custodial relationship with a Participant, either directly or indirectly (the
"Indirect Participants").
 
     Certificate Owners that are not Participants or Indirect Participants but
desire to purchase, sell or otherwise transfer ownership of, or other interests
in, Certificates may do so only through Participants and Indirect Participants.
In addition, Certificateholders will receive all distributions of principal of
and interest on the Certificates from the Trustee, as paying agent, or its
successor in such capacity (the "Paying Agent"), through the Participants who in
turn will receive them from DTC. Under a book-entry format, Certificate Owners
may experience some delay in their receipt of payments, since such payments will
be forwarded by the Paying Agent to Cede, as nominee for DTC. DTC will forward
such payments to its Participants which thereafter will forward them to Indirect
Participants or Certificate Owners. It is anticipated that the only
"Certificateholder" will be Cede, as nominee of DTC. Certificate Owners will not
be recognized by the Trustee as Certificateholders, as such term is used in the
Agreement, and Certificate Owners will only be permitted to exercise the rights
of Certificateholders indirectly through the Participants who in turn will
exercise the rights of Certificateholders through DTC.
 
     Under the rules, regulations and procedures creating and affecting DTC and
its operations, DTC is required to make book-entry transfers among Participants
on whose behalf it acts with respect to the Certificates and is required to
receive and transmit distributions of principal of and interest on the
Certificates. Participants and Indirect Participants with which Certificate
Owners have accounts with respect to the Certificates similarly are required to
make book-entry transfers and receive and transmit such payments on behalf of
their respective Certificate Owners. Accordingly, although Certificate Owners
will not possess Certificates, Certificate Owners will receive payments and will
be able to transfer their interests.
 
     Because DTC can only act on behalf of Participants, who in turn act on
behalf of Indirect Participants and certain banks, the ability of a Certificate
Owner to pledge Certificates to persons or entities that do not participate in
the DTC system, or otherwise take actions in respect of such Certificates, may
be limited due to the lack of a physical certificate for such Certificates.
 
     DTC has advised the Seller that it will take any action permitted to be
taken by a Certificateholder under the Agreement only at the direction of one or
more Participants to whose account with DTC the Certificates are credited.
Additionally, DTC has advised the Seller that it will take such actions with
respect to the particular portion of the Certificates represented by the
undivided interests held by Participants which have directed DTC, on their
behalf, to take such action. DTC may take conflicting actions with respect to
other undivided interests to the extent that such actions are taken on behalf of
Participants whose holdings include such undivided interests.
 
     Although DTC has agreed to the foregoing procedures in order to facilitate
transfers of Certificates among participants of DTC, they are under no
obligation to perform or continue to perform such procedures and such procedures
may be discontinued at any time.
 
DEFINITIVE CERTIFICATES
 
     The Certificates will be issued in fully registered, certificated form in
denominations of $1,000 and integral multiples thereof to Certificate Owners or
their nominees (the "Definitive Certificates"), rather than to DTC or its
nominee, only if (i) the Seller advises the Trustee in writing that DTC is no
longer willing or able to discharge properly its responsibilities as depositary
with respect to the Certificates, and the Trustee or the Seller are unable to
locate a qualified successor, or (ii) after the occurrence of an Event of
Default, Certificate Owners representing in the aggregate more than 50% of the
Pool Balance advise the Trustee and DTC through Participants in writing that the
continuation of a book-entry system with respect to the Certificates through any
depositary is no longer in the best interest of the Certificate Owners.
 
     Upon the occurrence of any of the events described in the immediately
preceding paragraph, DTC is required to notify all Participants of the
availability through DTC of Definitive Certificates. Upon surrender by DTC of
the Definitive Certificates representing the Certificates and instructions for
reregistration, the Trustee
 
                                       31
<PAGE>   33
 
will issue the Certificates as Definitive Certificates, and thereafter the
Trustee will recognize the holders of such Definitive Certificates as holders
under the Agreement (collectively, "Holders").
 
     Distribution of principal of and interest on the Certificates will be made
by the Paying Agent directly to Holders of Definitive Certificates in accordance
with the procedures set forth herein and in the Agreement. Interest
Distributions and Principal Distributions on each Distribution Date and on the
Final Distribution Date will be made to Holders in whose names the Definitive
Certificates were registered at the close of business on the related Record
Date. Distributions will be made by check mailed to the address of such Holder
as it appears on the certificate register. The final payment of any Certificate
(whether Definitive Certificates or the Certificate registered in the name of
DTC's nominee), however, will be made only upon presentation and surrender of
such Certificate at the office or agency specified in the notice of final
distribution to Certificateholders. The Trustee will provide such notice to
registered Certificateholders not later than the fifteenth day of the month of
such final distribution.
 
     Definitive Certificates will be transferable and exchangeable at the
offices of the Transfer Agent and Registrar, which shall initially be the
Trustee. No service charge will be imposed for any registration of transfer or
exchange, but the Transfer Agent and Registrar may require payment of a sum
sufficient to cover any tax or other governmental charge imposed in connection
therewith.
 
SALE AND ASSIGNMENT OF THE CONTRACTS
 
     At the time of issuance of the Certificates, the Seller will sell and
assign to the Trustee, without recourse, the Seller's entire interest in the
Initial Contracts and the proceeds thereof, including its security interests in
the Initial Financed Vehicles. Concurrently with the sale and assignment of the
Initial Contracts, the Seller will sell and assign to the Trustee, against
payment therefor from the Prefunded Amount, all of the Seller's interest in the
Subsequent Contracts thereafter created and delivered to the Trustee. Each
Initial Contract will be identified in a schedule appearing as an exhibit to the
Agreement. The Trustee will, concurrently with such sale and assignment,
execute, authenticate and deliver the definitive certificates representing the
Certificates to the Underwriter against payment to the Seller of the net
purchase price of the sale of the Certificates. Pursuant to the Purchase
Agreement, prior to sale of the Initial Contracts to the Trustee and the
issuance of the Certificates, Onyx sold and assigned to the Seller Onyx's entire
interest in the Initial Contracts.
 
     During the Funding Period, pursuant to the Purchase Agreement, Onyx will be
obligated to sell and the Seller will be obligated to purchase, Subsequent
Contracts. On each Subsequent Transfer Date, Onyx will sell and assign to the
Seller, without recourse, its entire right, title and interest in and to
Subsequent Contracts, including its security interest in the Subsequent Financed
Vehicles. The purchase price to be paid to Onyx for each Subsequent Contract
will equal the principal balance thereof as of the related Subsequent Transfer
Date. Pursuant to the Agreement, the Seller will in turn sell the Subsequent
Contracts to the Trust. Each Subsequent Contract will be sold to the Trust
within two Business Days of its acquisition by Onyx. In connection with each
purchase of Subsequent Contracts, the Trust will be required to pay to the
Seller an amount equal to the amount paid by the Seller to Onyx for such
Subsequent Contracts, which purchase price will be paid from monies on deposit
in the Prefunding Account. Each Subsequent Contract delivered to the Trustee on
each Subsequent Transfer Date will be accompanied by a certificate of the Seller
(a "Transfer Certificate") setting forth the aggregate principal balance of the
related Subsequent Contracts, the aggregate principal balance of the Subsequent
Contracts delivered to the Trustee during the Funding Period up to and including
such Subsequent Transfer Date and an affirmation of the representations and
warranties set forth in the Agreement with respect to the Seller and such
Subsequent Contracts. Upon the conveyance of Subsequent Contracts to the Trust
on a Subsequent Transfer Date, the Pool Balance will increase in an amount equal
to the aggregate Cut-Off Date Scheduled Balance of such Subsequent Contracts as
of the related Subsequent Transfer Date.
 
     Each conveyance of Subsequent Contracts will be subject to the following
conditions, among others: (i) such Subsequent Contracts must satisfy the
Eligibility Requirements; (ii) such Subsequent Contracts were not selected by
Onyx or the Seller in a manner that either believes is adverse to the interests
of the Certificateholders or the Insurer; (iii) the weighted average APR of the
Contracts (after giving effect to the
 
                                       32
<PAGE>   34
 
   
purchase of the related Subsequent Contracts) is not less than      %; (iv) the
weighted average remaining term of the Contracts (including the Subsequent
Contracts) as of the related Subsequent Transfer Date will not be greater than
72 months; and (v) the Seller and the Trustee shall not have been advised by
either Rating Agency that the conveyance of such Subsequent Contracts will
result in a qualification, modification or withdrawal of its then current rating
of the Certificates.
    
 
     On the Business Day preceding each Distribution Date during and immediately
following the Funding Period (each such date a "Subsequent Closing Date") UCC-1
financing statements will be filed naming the Seller as seller and the Trustee
as the purchaser with respect to the Subsequent Contracts delivered to the
Trustee since the preceding Subsequent Closing Date (or the Closing Date, in the
case of the first Subsequent Closing Date) and all legal opinions, officers'
certificates and other documentation necessary with respect to the Subsequent
Contracts delivered to the Trustee since the preceding Subsequent Closing Date
(or the Closing Date, as the case may be) will be executed and delivered.
Failure to comply with any of the conditions set forth in the Agreement with
respect to a Subsequent Closing Date will be deemed to be a breach of a
representation and warranty with respect to the Subsequent Contracts to which
such Subsequent Closing Date relates and accordingly the Seller will be
obligated to repurchase such Subsequent Contracts from the Trust as described
below.
 
     Because the Subsequent Contracts will be originated after the Initial
Contracts, following their conveyance to the Trust, the characteristics of the
Contracts, including the Subsequent Contracts, may vary from those of the
Initial Contracts.
 
     Pursuant to the Agreement, the Seller will represent to the Trustee and the
Trust for the benefit of holders of the Certificates and the Insurer that: (i)
each Contract contains or will contain customary and enforceable provisions such
that the rights and remedies of the holder thereof shall be adequate for
realization against the collateral of the benefits of the security; (ii) each
Contract and the sale of the related Financed Vehicle at the date of origination
complied or will comply in all material respects with all requirements of
applicable federal, state, and local laws, and regulations thereunder, including
usury laws, the Federal Truth-in-Lending Act, the Equal Credit Opportunity Act,
the Fair Credit Reporting Act, the Federal Trade Commission Act, the Fair Debt
Collection Practices Act, the Fair Credit Billing Act, the Magnuson-Moss
Warranty Act, the Federal Reserve Board's Regulations B and Z, the Soldiers' and
Sailors' Civil Relief Act of 1940, state adaptations of the National Consumer
Act and of the Uniform Consumer Credit Code, and any other consumer credit,
equal opportunity and disclosure laws applicable to such Contract and sale;
(iii) each Contract constitutes or will constitute the legal, valid, and binding
payment obligation in writing of the Obligor, enforceable by the holder thereof
in all respects in accordance with its terms, subject, as to enforcement, to
applicable bankruptcy, insolvency, reorganization, liquidation and other similar
laws and equitable principles relating to or affecting the enforcement of
creditors' rights; (iv) as of the Closing Date or related Subsequent Transfer
Date, as applicable, each Contract was or will be secured by a validly perfected
first priority security interest in the Financed Vehicle in favor of the Seller
as secured party or all necessary action with respect to such Contract has been
or will be taken to perfect a first priority security interest in the related
Financed Vehicle in favor of the Seller as secured party, which security
interest is or will be assignable and has been or will be so assigned by the
Seller to the Trust; (v) as of the Closing Date or related Subsequent Transfer
Date, as applicable, the Seller had or will have good and marketable title to
and was or will be the sole owner of each Contract, free of liens, claims,
encumbrances and rights of others; (vi) as of the Closing Date or related
Subsequent Transfer Date, as applicable, there are no rights of rescission,
offset, counterclaim, or defense, and the Seller had or will have had no
knowledge of the same being asserted or threatened, with respect to any
Contract; (vii) as of the Closing Date or related Subsequent Transfer Date, as
applicable, the Seller had or will have had no knowledge of any liens or claims
that have been filed, including liens for work, labor, materials or unpaid taxes
relating to a Financed Vehicle, that would be liens prior to, or equal or
coordinate with, the lien granted by the Contract; (viii) except for payment
defaults continuing for a period of not more than 30 days as of the Cut-Off Date
or related Subsequent Transfer Date, as applicable, the Seller has or will have
had no knowledge that a default, breach, violation, or event permitting
acceleration under the terms of any Contract exists, and the Seller has or will
have had no knowledge that a continuing condition that with notice or lapse of
time would constitute a default, breach, violation or event permitting
acceleration under
 
                                       33
<PAGE>   35
 
the terms of any Contract exists, and the Seller has not waived any of the
foregoing; (ix) each Contract requires or will require that the Obligor
thereunder obtain comprehensive and collision insurance covering the related
Financed Vehicle; (x) each Contract was or will be acquired from a dealer with
whom Onyx ordinarily does business (except for Contracts originated by Onyx);
(xi) no adverse selection procedures were utilized in selecting the Contracts;
(xii) scheduled payments under each Contract have been or will be applied in
accordance with the method for allocating principal and interest set forth in
the Contract (either the Rule of 78's or Simple Interest Method); and (xiii)
there is or will be only one original of each Contract and such original is or
will be held by the Trustee as custodian on behalf of the Trust and Insurer. As
of the last day of the Collection Period following the Collection Period (or, if
the Seller elects, the last day of such Collection Period) during which the
Seller becomes aware or receives written notice from the Trustee or the Servicer
that a Contract does not meet any of the criteria in the Agreement and such
failure materially and adversely affects the interests of the Certificateholders
or the Insurer in a Contract, the Seller, unless it cures the failed criterion,
will repurchase the Contract from the Trustee at a price equal to the Scheduled
Balance thereof plus accrued interest (the "Repurchase Amount"). The repurchase
obligation will constitute the sole remedy available to the Certificateholders
or the Trustee for the failure of a Contract to meet any of the criteria set
forth in the Agreement.
 
THE COLLECTION ACCOUNT AND ELIGIBLE INVESTMENTS
 
     The Servicer will cause all collections made on the Contracts during a
Collection Period to be deposited in or credited to an account (the "Collection
Account") established by the Servicer under the Agreement. Funds in the
Collection Account will be invested in Eligible Investments by the Trustee
acting at the direction of the Insurer. "Eligible Investments" are: (a) direct
obligations issued or fully guaranteed by the United States or any agency or
instrumentality of the United States whose obligations are backed by the full
faith and credit of the United States and, to the extent, at the time of the
investment, acceptable to the Insurer and each statistical rating agency rating
the Certificates for securities having a rating equivalent to the rating of the
Certificates at the Closing Date, the direct obligations of, or obligations
fully guaranteed by, the Federal Home Loan Mortgage Corporation and the Federal
National Mortgage Association; (b) deposits in or other obligations of any bank
(including the Trustee) whose long-term unsecured debt obligations are rated
"AA-" or better by Standard & Poor's Ratings Services ("Standard & Poor's") and
"Aa2" or better by Moody's Investors Service, Inc. ("Moody's") or any bank
acceptable to the Insurer; (c) repurchase obligations with respect to federal
government or agency securities described in clause (a) above entered into with
any bank described in clause (b) above; (d) interest-bearing or discount
corporate securities rated "AA-" or better by Standard & Poor's and "Aa2" or
better by Moody's; (e) commercial paper having the highest rating obtainable
from Standard & Poor's and Moody's; (f) investments in money market funds or
money market mutual funds having a rating from Standard & Poor's and Moody's in
the highest investment category granted thereby, including funds for which the
Trustee or any of its affiliates is investment manager or advisor; and (g) such
other securities that are acceptable to the Insurer. Eligible Investments made
with respect to the Collection Account will mature no later than the next
following Distribution Date. Income from amounts on deposit in the Collection
Account which are invested in Eligible Investments will be paid to the Servicer
monthly unless earlier directed by the Servicer.
 
PAYAHEAD ACCOUNT
 
     For Simple Interest Contracts, payments made by an Obligor in excess of the
Monthly P&I due on the current Due Date and any other amount currently due on a
Contract (including Full Prepayments) will be passed through to the
Certificateholders as part of the Principal Distribution on the Distribution
Date immediately following the Collection Period in which such payment was
collected.
 
     For Rule of 78's Contracts, however, payments made by an Obligor in excess
of the Monthly P&I due on the current Due Date and any other amount currently
due on a Contract (other than Full Prepayments) ("Payaheads") will be initially
deposited in the Collection Account and subsequently transferred from the
Collection Account, as of each Servicer Report Date, to an account established
in the name of Bankers Trust Company for the benefit of the Obligors and the
Certificateholders as their interests may appear (the
 
                                       34
<PAGE>   36
 
"Payahead Account") and shall be held in such account until passed through in
accordance with the original schedule of payments for the related Contract or
until the amount of such partial prepayment equals the amount the Obligor would
be required to pay in order to prepay the Contract in full. The Payahead Account
will be an Eligible Account. Amounts on deposit in the Payahead Account will be
invested in Eligible Investments with maturity dates such that on each
Distribution Date Monthly P&I for each Rule of 78's Contract with respect to
which a partial prepayment had been made will be available to be passed through
to Certificateholders. The Payahead Account will not be part of the Trust and
the Trustee will not have a security interest in the Payahead Account. Earnings
on Eligible Investments credited to the Payahead Account will be paid to the
Servicer. Full Prepayments during any Collection Period will be deposited
directly into the Collection Account for distribution to Certificateholders on
the Distribution Date next succeeding such Collection Period.
 
PAYMENTS ON CONTRACTS
 
     All collections on the Contracts will be deposited in or credited to the
Collection Account within two Business Days of the receipt by the Servicer of
payments from Obligors. Such collections will include: Full Prepayments and
partial prepayments (pending transfer of Payaheads on Rule of 78's Contracts to
the Payahead Account), Net Liquidation Proceeds and Net Insurance Proceeds, any
amounts deposited by Onyx or the Seller in the Collection Account to purchase
Contracts because of certain material defects in documents related to the
Contracts or certain breaches in representations or warranties regarding the
Contracts made by Onyx or the Seller in the Agreement that materially and
adversely affect the interests of the Certificateholders or the Insurer, any
amounts deposited by the Servicer in the Collection Account to purchase
Contracts as to which the Servicer has breached certain servicing covenants; and
any amounts deposited by the Servicer in the Collection Account as a result of
such entity exercising its right under certain circumstances to purchase all or
a portion of the Contracts. "Net Liquidation Proceeds" are proceeds received by
the Servicer (net of Liquidation Expenses) upon liquidation of any Defaulted
Contract. "Liquidation Expenses" are the reasonable out-of-pocket expenses
(exclusive of overhead expenses) incurred by the Servicer in realizing upon a
Defaulted Contract which are not recoverable under any insurance policy. "Net
Insurance Proceeds" are proceeds paid by any insurer under a comprehensive and
collision or vendor's single interest insurance policy related to a Contract
(other than funds used for the repair of the related Financed Vehicle or
otherwise released to the related Obligor in accordance with normal servicing
procedures) and proceeds from the Blanket Insurance Policy, after reimbursement
to the Servicer of expenses recoverable under such policy. Partial prepayments
of Rule of 78's Contracts are initially deposited in the Collection Account and
are transferred to the Payahead Account on the Servicer Report Date.
 
DISTRIBUTIONS
 
   
     Subject to the last sentence of this paragraph, distributions on the
Certificates will be made on each Distribution Date by the Trustee out of net
collections on the Contracts (exclusive of amounts representing payment due in
the Collection Period in which such Distribution Date occurs and any future
Collection Periods) for the Collection Period preceding such Distribution Date
plus amounts payable from the Payahead Account, the Prefunding Account and/or
pursuant to the Capitalized Interest Agreement (including from the Capitalized
Interest Account). Such amount will be applied, first, to the Servicer in
payment of the Servicing Fee, second, to payment of the Interest Distribution
and the Principal Distribution to the Certificateholders on such Distribution
Date in accordance with the Agreement (including the distribution of any
Mandatory Partial Prepayment), third, to the Insurer, the premium for the Surety
Bond, and fourth, any balance shall be distributed to a separate spread account
trust to be applied in accordance with the spread account trust agreement and
the Insurance Agreement, which provide that to the extent funds are not required
to reimburse the Insurer for draws on the Surety Bond, to satisfy obligations
owing to the Insurer or to reserve against the possibility of future draws,
amounts so remaining shall be released to the beneficiaries of the spread
account trust. Any amounts distributed pursuant to clause fourth above will not
be available to make distributions to the Certificateholders on the current or
any future Distribution Date. Under the Surety Bond, the Insurer is obligated to
provide for payment to the Trustee on each Distribution Date of the amount, if
any, by which the amount available for distribution from the net collections on
Contracts and amounts payable from the
    
 
                                       35
<PAGE>   37
 
   
Payahead Account, the Prefunding Account and/or pursuant to the Capitalized
Interest Agreement (including from the Capitalized Interest Account), is less
than the sum of the Servicing Fee, the Interest Distribution and the Principal
Distribution due to the Certificateholders for such Distribution Date. See
"-- Distributions of Principal and Interest."
    
 
INSURANCE ON FINANCED VEHICLES
 
     Each Obligor on a Contract is required to maintain insurance covering
physical damage to the Financed Vehicle of such Obligor in an amount not less
than the lesser of its maximum insurable value or the unpaid principal balance
under such Contract. Onyx is required to be named as a loss payee under the
policy of insurance obtained by the Obligor. The Financed Vehicle is required to
be insured against loss and damage due to fire, theft, transportation, collision
and other risks covered by comprehensive coverage. Onyx also maintains a
vendor's single interest insurance policy, as to which the Seller has been named
as an additional insured, which provides coverage upon repossession of a
Financed Vehicle in an amount equal to the lesser of the actual cash value of
such Financed Vehicle, the cost of repair or replacement for such Financed
Vehicle and the unpaid balance of the related Contract. Since Obligors may
choose their own insurers to provide the required coverage, the specific terms
and conditions of their policies vary.
 
     Onyx has obtained the Blanket Insurance Policy from United Financial
Casualty Company with a rating of "A" by A.M. Best, with respect to each
Contract. Subject to certain conditions, the Blanket Insurance Policy covers the
lesser of actual damage to a Financed Vehicle or the amount by which the
Obligor's unpaid remaining principal balance on the related Contract exceeds the
proceeds from disposition of the Financed Vehicle. Onyx's rights under the
Blanket Insurance Policy with respect to the Contracts under the Blanket
Insurance Policy have been assigned to the Trust pursuant to the Agreement.
 
SERVICER REPORTS TO THE TRUSTEE AND THE INSURER
 
     The Servicer will perform certain monitoring and reporting functions for
the Trustee and the Insurer, including the preparation and delivery on the
Servicer Report Date to the Trustee and the Insurer of the Distribution Date
Statement setting forth the amounts on deposit in the Collection Account, the
sources of such amounts and the amounts to be paid to Certificateholders (the
"Distribution Date Statement"). The Distribution Date Statement shall also
include information regarding Contracts purchased by the Servicer or repurchased
by the Seller.
 
REPURCHASE OF CONTRACTS
 
     The Servicer will have the option to purchase the remaining Contracts, and
thereby cause early retirement of the Certificates, as of any Distribution Date
on which, after giving effect to the Principal Distribution on such Distribution
Date, the Aggregate Scheduled Balance of the Contracts is 10% or less of the
Original Pool Balance. Any such purchase must be effected at a price equal to
the Aggregate Scheduled Balance of the Contracts in the Trust on the date of
repurchase, plus accrued interest thereon and all amounts due to the Insurer
under the Insurance Agreement. In addition, Onyx or the Seller is required to
purchase or repurchase, respectively, Contracts under certain circumstances if
certain representations and warranties made by Onyx or the Seller respectively
are incorrect in any manner that materially and adversely affects the interest
of the Certificateholders or the Insurer. Additionally, the Servicer is required
to purchase Contracts as to which the Servicer has breached certain servicing
covenants.
 
SERVICING FEE
 
   
     The Servicer will be entitled to compensation for the performance of its
obligations under the Agreement. The Servicer shall be entitled to receive an
amount equal to the product of one-twelfth of 1.00% per annum (the "Servicing
Fee Rate") and the Pool Balance (excluding the Prefunded Amount) as of the end
of the Collection Period preceding the related Collection Period. As additional
compensation, the Servicer or its designee shall be entitled to retain all late
payment charges, extension fees and similar items paid in respect of the
Contracts. The Servicer or its designee will also receive as servicing
compensation reinvestment earnings on Eligible Investments (other than earnings
on amounts on deposit in the Prefunding Account) and the amount, if any, by
which the outstanding principal balance based on the Rule of 78's of a Contract
that is subject to a Full Prepayment exceeds the Scheduled Balance of such
Contract. The Servicer shall pay all
    
 
                                       36
<PAGE>   38
 
expenses incurred by it in connection with its servicing activities under the
Agreement and shall not be entitled to reimbursement of such expenses except to
the extent they constitute Liquidation Expenses or expenses recoverable under an
applicable insurance policy.
 
REALIZATION UPON DEFAULTED CONTRACTS
 
     The Servicer will liquidate any Contract that comes into and continues in
default and as to which no satisfactory arrangements can be made for collection
of delinquent payments. Such liquidation may be through repossession or sale of
the Financed Vehicle securing such Contract or otherwise. In connection with
such repossession or other conversion, the Servicer will follow such procedures
as are normal and usual for holders of motor vehicle retail installment sales
contracts. In this regard, the Servicer may sell the Financed Vehicle at a
repossession or other sale.
 
                           DESCRIPTION OF THE INSURER
 
     The following information with respect to the Insurer has been furnished by
the Insurer and none of Onyx, the Seller or the Underwriter have made any
independent investigation of such information.
 
     The Insurer is a New York-domiciled monoline stock insurance company which
engages only in the business of financial guarantee and surety insurance. The
Insurer is licensed in 50 states in addition to the District of Columbia, the
Commonwealth of Puerto Rico and the territory of Guam. The Insurer insures
structured asset-backed, corporate, municipal and other financial obligations in
the U.S. and international capital markets. The Insurer also provides financial
guarantee reinsurance for structured asset-backed, corporate, municipal and
other financial obligations written by other major insurance companies.
 
     The Insurer's claims-paying ability is rated "Aaa" by Moody's, "AAA" by
Standard & Poor's, "AAA" by Duff & Phelps Credit Rating Co. and "AAA" by Nippon
Investors Service Inc. Such ratings reflect only the views of the respective
rating agencies, are not recommendations to buy, sell or hold securities and are
subject to revision or withdrawal at any time by such rating agencies.
 
   
     The Insurer is a wholly owned subsidiary of CapMAC Holdings Inc.
("Holdings"). On November 14, 1997, Holdings announced that it had signed an
agreement to merge with MBIA Inc. The merger, which is subject to approval by
regulatory authorities and the shareholders of Holdings, is anticipated to occur
in the first quarter of 1998. MBIA Inc., through its wholly owned subsidiary,
MBIA Insurance Corporation, is a financial guaranty insurer of municipal bonds
and structured finance transactions, and has a claims paying rating of triple-A
from Moody's, Standard & Poor's and Fitch Investors Service.
    
 
     NEITHER HOLDINGS NOR ANY OF ITS STOCKHOLDERS IS OBLIGATED TO PAY ANY CLAIMS
UNDER ANY SURETY BOND ISSUED BY THE INSURER OR ANY DEBTS OF THE INSURER OR TO
MAKE ADDITIONAL CAPITAL CONTRIBUTIONS TO THE INSURER.
 
     The Insurer is regulated by the Superintendent of Insurance of the State of
New York. In addition, the Insurer is subject to regulation by the insurance
laws and regulations of the other jurisdictions in which it is licensed. Such
insurance laws regulate, among other things, the amount of net exposure per risk
that the Insurer may retain, capital transfers, dividends, investment of assets,
changes in control, transactions with affiliates and consolidations and
acquisitions. The Insurer is subject to periodic regulatory examinations by the
same regulatory authorities.
 
     The Insurer's obligations under the Surety Bond may be reinsured. Such
reinsurance does not relieve the Insurer of any of its obligations under the
Surety Bond.
 
                                       37
<PAGE>   39
 
     THE SURETY BOND IS NOT COVERED BY THE PROPERTY/CASUALTY INSURANCE SECURITY
FUND SPECIFIED IN ARTICLE 76 OF THE NEW YORK INSURANCE LAW.
 
     As of December 31, 1996 and 1995, the Insurer had qualified statutory
capital (which consists of policyholders' surplus and contingency reserve) of
approximately $260 million and $240 million, respectively, and had not incurred
any debt obligations. Article 69 of the New York State Insurance Law requires
the Insurer to establish and maintain the contingency reserve, which is
available to cover claims under surety bonds issued by the Insurer.
 
   
     The audited financial statements of the Insurer prepared in accordance with
generally accepted accounting principles as of December 31, 1996 and 1995 and
for each of the years in the three-year period ended December 31, 1996 are
included in this Prospectus beginning at F-1. The unaudited financial statements
of the Insurer for the nine month periods ended September 30, 1996 and 1997 are
made a part of this Prospectus beginning at F-21. Copies of the Insurer's
financial statements prepared in accordance with statutory accounting standards,
which differ from generally accepted accounting principles, are filed with the
Insurance Department of the State of New York and are available upon request.
    
 
     The Insurer is located at 885 Third Avenue, New York, New York 10022, and
its telephone number is (212) 755-1155.
 
                     ADDITIONAL PROVISIONS OF THE AGREEMENT
 
STATEMENTS TO CERTIFICATEHOLDERS
 
     On each Distribution Date, the Trustee will include with each distribution
to each Certificateholder the Distribution Date Statement setting forth for such
Distribution Date the following information:
 
        (i)    the amount of the distribution to Certificateholders allocable to
               principal;
 
        (ii)   the amount of the distribution to Certificateholders allocable to
               interest;
 
        (iii)  the certificate distribution amount for such Distribution Date;
 
        (iv)  the premiums payable to the Insurer and the amount to be deposited
              in the spread account;
 
   
        (v)   during the Funding Period, the Aggregate Scheduled Balance of
              Subsequent Contracts transferred to the Trust during such
              Collection Period;
    
 
   
        (vi)  during the Funding Period, the remaining amount on deposit, if
              any, in the Prefunding Account, after giving effect to (v) above;
    
 
   
        (vii)  at the end of the Funding Period, the amount of the Mandatory
               Partial Prepayment;
    
 
   
        (viii)  the aggregate Servicing Fee paid to the Servicer with respect to
                the Contracts for the related Collection Period;
    
 
   
        (ix)  the number of, and aggregate amount of monthly principal and
              interest payments due on, the Contracts which are delinquent as of
              the end of the related Collection Period presented on a 30-day,
              60-day and 90-day basis;
    
 
   
        (x)   the amount available in the Collection Account for payment of the
              Certificate distribution amount and the Servicing Fee and the
              amount, if any, required from the Insurer pursuant to the Surety
              Bond to pay any shortfall;
    
 
   
        (xi)  the aggregate amount of Liquidation Proceeds received for
              Defaulted Contracts;
    
 
   
        (xii)  the net credit losses for the Collection Period;
    
 
   
        (xiii)  the number and net outstanding balance of Contracts for which
                the Financed Vehicle has been repossessed;
    
 
   
        (xiv)  the Pool Balance;
    
 
   
        (xv)  the amount in the Collection Account available for such
              Distribution Date; and
    
 
   
        (xvi)  the amount of claims (if any) made on the Surety Bond.
    
 
                                       38
<PAGE>   40
 
   
     Within a reasonable period of time after the end of each calendar year, but
not later than the latest date permitted by law, commencing with the year ended
December 31, 1997, the Trustee and the Paying Agent shall furnish to each person
who on any Record Date during such calendar year shall have been a registered
Certificateholder a statement containing the sum of the amounts described in
(i), (ii) and (xi) above and such other information in respect of the
Certificates as may be reasonably necessary for such Certificateholder's
preparation of federal income tax returns. See "Certain Federal Income Tax
Consequences."
    
 
EVIDENCE AS TO COMPLIANCE
 
     The Agreement will provide that a firm of independent public accountants
will furnish to the Trustee and the Insurer, on or before each March 15 after
the end of each fiscal year of the Servicer, beginning with the fiscal year
ended December 31, 1997, a statement as to compliance by the Servicer during the
preceding fiscal year with certain standards relating to the servicing of the
Contracts.
 
     The Agreement will also provide for delivery to the Trustee and the
Insurer, on each March 15 after the end of each fiscal year of the Servicer,
commencing with the fiscal year ended December 31, 1997, of a certificate signed
by an authorized officer of the Servicer stating that the Servicer has fulfilled
its obligations under the Agreement throughout the preceding fiscal year or, if
there has been a default in the fulfillment of any such obligation, describing
each such default.
 
     Copies of such statements and certificates may be obtained by
Certificateholders by a request in writing addressed to the Trustee.
 
CERTAIN MATTERS REGARDING THE SERVICER
 
     The Agreement will provide that the Servicer may not resign from its
obligations and duties as Servicer thereunder except upon determination that the
Servicer's performance of such duties is no longer permissible under applicable
law. No such resignation will become effective until the Trustee or a successor
servicer has assumed the Servicer's servicing obligations and duties under the
Agreement. See "-- The Trustee."
 
     The Agreement will further provide that neither the Servicer nor any of its
directors, officers, employees, and agents shall be under any liability to the
Trust or the Certificateholders for taking any action or for refraining from
taking any action pursuant to the Agreement, or for errors in judgment;
provided, however, that neither the Servicer nor any such person will be
protected against any liability that would otherwise be imposed by reason of
willful misfeasance, bad faith or negligence (except errors in judgment) in the
performance of duties or by reason of reckless disregard of obligations and
duties thereunder. In addition, the Agreement will provide that the Servicer is
under no obligation to appear in, prosecute or defend any legal action that is
not incidental to the Servicer's servicing responsibilities under the Agreement
and that, in its opinion, may cause it to incur any expense or liability. The
Servicer may, however, undertake any reasonable action that it may deem
necessary or desirable in respect of the Agreement and the rights and duties of
the parties thereto and the interests of the Certificateholders thereunder. In
such event, the legal expenses and costs of such action and any liability
resulting therefrom will be expenses, costs and liabilities of the Trust, and
the Servicer will be entitled to be reimbursed therefor out of the Collection
Account. Any such indemnification or reimbursement could reduce the amount
otherwise available for distribution to Certificateholders.
 
     Any corporation into which the Servicer may be merged or consolidated, or
any corporation resulting from any merger, conversion or consolidation to which
the Servicer is a party or any corporation succeeding to the business of the
Servicer, or, with respect to the Servicer's obligation as the Servicer, will be
the successor of the Servicer under the Agreement.
 
EVENTS OF DEFAULT
 
     "Events of Default" under the Agreement will consist of: (i) any failure by
the Servicer to deposit in or credit to the Collection Account, the Payahead
Account or the Capitalized Interest Account any amount required to be so
deposited or credited or to make the required distribution to
Certificateholders, which failure continues unremedied for three Business Days
after written notice from the Trustee or the Insurer is received
 
                                       39
<PAGE>   41
 
by the Servicer or discovery by the Servicer; (ii) any failure by the Servicer
to deliver to the Insurer or the Trustee certain reports required by the
Agreement by the fifth Business Day prior to the related Distribution Date or to
perform certain other covenants under the Agreement; (iii) any failure by the
Servicer or the Seller duly to observe or perform in any material respect any
other covenants or agreements of the Servicer or the Seller in the Agreement,
which failure materially and adversely affects the rights of Certificateholders,
the Insurer or the Trustee and which continues unremedied for 30 days after the
giving of written notice of such failure (A) to the Servicer or the Seller as
the case may be, by the Trustee or the Insurer or (B) to the Servicer or the
Seller, as the case may be, and to the Trustee by Holders of Certificates
evidencing not less than 25% of the Pool Balance or by the Insurer; (iv) certain
events of insolvency, readjustment of debt, marshalling of assets and
liabilities, or similar proceedings and certain actions by the Servicer or
Seller indicating its insolvency, reorganization pursuant to bankruptcy or
similar proceedings or inability to pay its obligations; (v) any breach of any
of the representations and warranties of the Servicer or the Seller (except for
any breaches relating to Contracts repurchased by the Seller or the Servicer)
which breach has a material adverse effect on the Trust and which continues for
30 days after the giving of notice of such breach to the Seller or the Servicer,
as the case may be, by the Trustee or the Holders of Certificates evidencing not
less than 25% of the Pool Balance or the Insurer; (vi) any change in control of
the Servicer in violation of the covenant set forth in Section 7.2 of the
Agreement; and (vii) any determination by the Insurer that the quality of
performance of the Servicer is not in compliance with either the terms of the
Agreement or that the Servicer's performance is not adequate, as measured in
accordance with industry standards, in respect of all contracts serviced by the
Servicer.
 
RIGHTS UPON EVENT OF DEFAULT
 
     As long as an Event of Default under the Agreement remains unremedied, the
Trustee, the Insurer or Holders of Certificates evidencing not less than 25% of
the Pool Balance may terminate all the rights and obligations of the Servicer
under the Agreement, whereupon the Trustee will succeed to all the
responsibilities, duties and liabilities of the Servicer under the Agreement and
will be entitled to similar compensation arrangements; provided, however, that
the Trustee will not be obligated to purchase Contracts if certain
representations and warranties of Onyx as Servicer prove incorrect or if certain
covenants of Onyx as Servicer are breached. In the event that the Trustee is
unwilling or unable so to act, it may appoint, with the consent of the Insurer,
or petition a court of competent jurisdiction for the appointment of a successor
with a net worth of at least $50,000,000 and whose regular business includes the
servicing of automobile retail installment sale contract receivables.
 
     The Holders of Certificates evidencing not less than 51% of the Pool
Balance (not including any Certificates held by the Seller, the Servicer or any
affiliate) may, on behalf of all Certificateholders, with the consent of the
Insurer, waive any default by the Servicer or the Seller in the performance of
its obligations, other than failure to make any required deposits to or payments
from the Collection Account.
 
     The Trustee is under no obligation to exercise any of the trusts or powers
vested in it by the Agreement or to make any investigation of matters arising
thereunder or to institute, conduct, or defend any litigation thereunder or in
relation thereto at the request, order, or direction on any of the
Certificateholders, unless such Certificateholders have offered to the Trustee
reasonable security or indemnity against the costs, expenses and liabilities
which may be incurred therein or thereby. No Certificateholder will have any
right under the Agreement to institute any proceeding with respect to the
Agreement, unless such Holder previously has given to the Trustee written notice
of default and unless the Holders of Certificates evidencing not less than 25%
of the Pool Balance with the consent of the Insurer have made written request
upon the Trustee to institute such proceeding in its own name as Trustee
thereunder and have offered to the Trustee reasonable indemnity and the Trustee
for 30 days has neglected or refused to institute any such proceedings.
 
     Notwithstanding any provision in the Agreement to the contrary, in the
event that the Insurer is in default under the Surety Bond or is subject to any
insolvency proceeding, the Insurer shall not have the right to terminate the
Servicer, or to control or direct the actions of the Seller, the Servicer or the
Trustee pursuant to the terms of the Agreement, nor shall the consent of the
Insurer be required with respect to any action (or
 
                                       40
<PAGE>   42
 
waiver of a right to take action) to be taken by the Seller, the Servicer or the
Trustee; provided, that the consent of the Insurer shall be required at all
times with respect to any amendment of the Agreement.
 
AMENDMENT
 
     The Agreement may be amended by the Seller, the Servicer and the Trustee,
without the consent of the Certificateholders but with the consent of the
Insurer, to cure any ambiguity, correct or supplement any provision therein
which may be inconsistent with any other provision therein, or make any other
provisions with respect to matters or questions arising under such Agreement
which are not inconsistent with the provisions of the Agreement; provided that
such action will not, in the opinion of counsel satisfactory to the Trustee,
materially and adversely affect the interest of any Certificateholder. The
Agreement may also be amended by the Seller, the Servicer and the Trustee with
the consent of the Holders of Certificates evidencing not less than 51% of the
Pool Balance and the Insurer for the purpose of adding any provisions to or
changing in any manner or eliminating any of the provisions of the Agreement or
of modifying in any manner the rights of Certificateholders; provided, however,
that no such amendment may (i) increase or reduce in any manner the amount of,
or accelerate or delay the timing of, collection of payments on Contracts or
distributions required to be made on any Certificate or (ii) reduce the
aforesaid percentage required to consent to any such amendment, without the
consent of all Certificateholders.
 
LIST OF CERTIFICATEHOLDERS
 
     Upon written request of the Servicer, the Trustee will provide to the
Servicer within 15 days after receipt of such request a list of the names and
addresses of all Certificateholders of record as of the most recent Record Date.
Upon written request by three or more Certificateholders or by Holders of
Certificates evidencing not less than 25% of the Pool Balance, the Trustee will
afford such Certificateholders access during business hours to the current list
of Certificateholders for purposes of communicating with other
Certificateholders with respect to their rights under the Agreement.
 
     The Agreement will not provide for the holding of any annual or other
meetings of Certificateholders.
 
TERMINATION
 
     The obligations of the Seller, the Servicer and the Trustee to the
Certificateholders pursuant to the Agreement will terminate upon the earlier of
(i) the maturity or other liquidation of the last Contract and the disposition
of any amounts received upon liquidation of any remaining Contracts that are
part of the Trust Property and (ii) (a) the payment to Certificateholders of all
amounts required to be paid to them pursuant to the Agreement and the
disposition of all property held as part of the Trust, (b) termination of the
Surety Bond in accordance with its terms and surrender of the Surety Bond to the
Insurer for cancellation, (c) the payment of all amounts owed to the Trustee
under the Agreement and (d) the payment of all amounts owed to the Insurer under
the Insurance Agreement and the spread account trust agreement. In order to
avoid excessive administrative expense, the Servicer is permitted at its option
to purchase the remaining Contracts from the Trust as of the Distribution Date
as of which the then outstanding Aggregate Scheduled Balance of the Contracts is
10% or less of the Original Pool Balance at a price equal to the Aggregate
Scheduled Balance of such Contracts plus accrued interest on the Contracts and
all amounts due to the Insurer under the Insurance Agreement. The Trustee will
give written notice of termination to each Certificateholder of record. The
final distribution to any Certificateholder will be made only upon surrender and
cancellation of such Certificateholder's Certificate at an office or agency of
the Trustee specified in the notice of termination. Any funds remaining in the
Trust, after the Trustee has taken certain measures to locate a
Certificateholder and such measures have failed, will be distributed to a
charity designated by the Servicer.
 
THE TRUSTEE
 
     The Trustee makes no representations as to the validity or sufficiency of
the Agreement, the Certificates, or any Contracts or related documents, or the
investment of any monies by the Servicer before such monies are deposited in or
credited to the Collection Account. The Trustee has not examined the Contracts.
If no
 
                                       41
<PAGE>   43
 
Event of Default has occurred, the Trustee is required to perform only those
duties specifically required of it under the Agreement. Generally, those duties
are limited to the receipt of the various certificates, reports or other
instruments required to be furnished to the Trustee under the Agreement, the
making of distributions to Certificateholders in the amounts specified in
certificates provided by the Servicer and drawing on the Surety Bond if required
to make distributions to the Certificateholders.
 
     Bankers Trust Company is the Trustee under the Agreement. The Trustee, and
any of its affiliates, may hold Certificates in their own names. In addition,
for the purpose of meeting the legal requirements of certain local
jurisdictions, the Servicer and the Trustee acting jointly shall have the power
to appoint co-trustees or separate trustees of all or any part of the Trust. In
the event of such appointment, all rights, powers, duties and obligations
conferred or imposed upon the Trustee by the Agreement shall be conferred or
imposed upon the Trustee and such separate trustee or co-trustee jointly, or, in
any jurisdiction in which the Trustee shall be incompetent or unqualified to
perform certain acts, singly upon such separate trustee or co-trustee who shall
exercise and perform such rights, powers, duties and obligations solely at the
direction of the Trustee.
 
     The Trustee may resign at any time, in which event a successor trustee will
be appointed pursuant to the terms of the Agreement. The Trustee may be removed
if it ceases to be eligible to continue as such under the Agreement or if the
Trustee becomes insolvent. Any resignation or removal of the Trustee and
appointment of a successor does not become effective until acceptance of the
appointment by the successor trustee.
 
     The Trustee shall be entitled to a fee payable on an annual basis by the
Servicer. The Agreement will further provide that the Trustee will be entitled
to indemnification by the Servicer for, and will be held harmless against, any
loss, liability, or expense incurred by the Trustee not resulting from the
Trustee's own willful misfeasance, bad faith, or negligence (other than errors
in judgment) or by reason of breach of any of their respective representations
or warranties set forth in the Agreement, except to the extent that such loss,
liability, or expense relates to a specific Contract or Contracts or certain
taxes that could be asserted against the Trustee, the Trust or the Contracts, in
which case the Trustee would be entitled to be indemnified by the Trust.
 
     Onyx and the Insurer may maintain other banking relationships with the
Trustee in the ordinary course of business.
 
                     CERTAIN LEGAL ASPECTS OF THE CONTRACTS
 
GENERAL
 
     The Contracts are "chattel paper" as defined in the Uniform Commercial Code
("UCC") as in effect in California. Pursuant to the UCC, an ownership interest
in chattel paper may be perfected by possession of the collateral or filing a
UCC-1 financing statement with the California Secretary of State.
 
     Under the Agreement, the Trustee initially will have custody of the
Contracts following the sale of the Contracts to the Trust and will hold the
Contracts as bailee for the benefit of the Trust. Upon receiving the prior
consent of the Insurer, which cannot be unreasonably withheld, the Servicer may
be appointed by the Trustee to act as the custodian of the Contracts. Upon such
appointment physical possession of the Contracts would shift from the Trustee to
the Servicer. While the Contracts will not be physically marked to indicate the
ownership interest thereof by the Trust, UCC-1 financing statements will be
filed with the California Secretary of State to perfect by filing and give
notice of the Trust's ownership interest in the Contracts. If, through
inadvertence or otherwise, any of the Contracts were sold to another party who
purchased such Contracts in the ordinary course of its business and took
possession of such Contracts, the purchaser would acquire an interest in the
Contracts superior to the interests of the Trust if the purchaser acquired the
Contracts in good faith, for value and without actual knowledge of the Trust's
ownership interest in the Contracts.
 
                                       42
<PAGE>   44
 
SECURITY INTERESTS IN THE FINANCED VEHICLES
 
   
     All Financed Vehicles were registered in the State of California or one of
the other states listed above under "The Contracts" at the time of origination
of the related Contract. Perfection of security interests in motor vehicles is
generally governed by state certificate of title statutes or by the motor
vehicle registration laws of the state in which each vehicle is located.
Security interests in vehicles registered in the State of California (the state
in which approximately 60.37% of the Financed Vehicles as of the Cut-Off Date
will be located) may be perfected by depositing with the California Department
of Motor Vehicles a properly endorsed certificate of title showing the secured
party as legal owner or an application for an original registration together
with an application for registration of the secured party as legal owner. The
Seller has warranted to the Trust in the Agreement that Onyx has taken all steps
necessary to obtain a perfected first priority security interest with respect to
all Financed Vehicles securing the Contracts and that such security interest has
been assigned to the Trust. If Onyx fails, because of clerical errors or
otherwise, to effect or maintain the notation of its security interest on the
certificate of title relating to a Financed Vehicle, the Trust may not have a
first priority security interest in such Financed Vehicle.
    
 
   
     The Seller will sell the Contracts and assign the security interest in each
Financed Vehicle to the Trust. However, because of the administrative burden and
expense, the Trust will not amend the certificates of title to identify the
Trust as the new secured party. Accordingly, Onyx, will continue to be named as
the secured party on the certificates of title relating to the Financed
Vehicles. Under the law of California and most other states, the assignment of
the Contracts is an effective conveyance of the security interests in the
Financed Vehicles without amendment of the lien noted on the related certificate
of title and the new secured party succeeds to the assignor's rights as the
secured party. However, there exists a risk in not identifying the Trust as the
new secured party on the certificate of title that, through fraud or negligence,
the security interest of the Trust could be released.
    
 
     In the absence of fraud or forgery by the Financed Vehicle owner or
administrative error by state recording officials, notation of the lien of Onyx
will be sufficient to protect the Trust against the rights of subsequent
purchasers of a Financed Vehicle or subsequent lenders who take a security
interest in a Financed Vehicle. If there are any Financed Vehicles as to which
Onyx has failed to perfect the security interest assigned to the Trust, such
security interest would be subordinate to, among others, subsequent purchasers
of the Financed Vehicles and holders of perfected security interests.
 
     In the event that the owner of a Financed Vehicle relocates to a state
other than the state in which the Financed Vehicle was registered at the
inception of the Contract, under the laws of most states the perfected security
interest in the Financed Vehicle would continue for four months after such
relocation and thereafter, in most instances, until the owner re-registers the
Financed Vehicle in such state. A majority of states generally require surrender
of a certificate of title to re-register a vehicle. Therefore, the Servicer will
provide the department of motor vehicles or other appropriate state or county
agency of the state of relocation with the certificate of title so that the
owner can effect the re-registration. If the Financed Vehicle owner moves to a
state that provides for notation of lien on the certificate of title to perfect
the security interests in the Financed Vehicle, Onyx, absent clerical errors or
fraud, would receive notice of surrender of the certificate of title if Onyx's
lien is noted thereon. Accordingly, Onyx will have notice and the opportunity to
re-perfect the security interest in the Financed Vehicle in the state of
relocation. If the Financed Vehicle owner moves to a state which does not
require surrender of a certificate of title for registration of a motor vehicle,
reregistration could defeat perfection. In the ordinary course of servicing its
portfolio of motor vehicle installment sales contracts, Onyx takes steps to
effect such re-perfection upon receipt of notice of registration or information
from the Obligor as to relocation. Similarly, when an Obligor under a Contract
sells a Financed Vehicle, the Servicer must provide the owner with the
certificate of title, or the Servicer will receive notice as a result of its
lien noted thereon and accordingly will have an opportunity to require
satisfaction of the related Contract before release of the lien. Under the
Agreement, Onyx, at its cost, is obligated to maintain the continuous perfection
of its security interest in the Financed Vehicle.
 
   
     Under the law of California and most other states, liens for unpaid taxes,
storage of and repairs performed on a motor vehicle take priority even over a
perfected security interest.The Internal Revenue Code of 1986, as
    
 
                                       43
<PAGE>   45
 
amended, also grants priority to certain federal tax liens over the lien of a
secured party. The Seller will represent in the Agreement that as of the initial
issuance of the Certificates no such state or federal liens exist with respect
to any Financed Vehicle securing payment on any Contract. However, such liens
could arise at any time during the term of a Contract. No notice will be given
to the Servicer in the event such a lien arises.
 
ENFORCEMENT OF SECURITY INTERESTS IN FINANCED VEHICLES
 
   
     The Servicer, on behalf of the Trust, may take action itself to enforce its
security interest with respect to Defaulted Contracts by repossession and resale
of the Financed Vehicles securing such Defaulted Contracts. In addition to the
provisions of the UCC, under California law the Contracts originated in
California are subject to the provisions of the Rees-Levering Motor Vehicle
Sales and Finance Act (the "Rees-Levering Act"). In California the provisions of
the Rees-Levering Act control in the event of a conflict with the provisions of
the UCC. Contracts originated in states other than California may be subject to
retail installment sales laws and similar laws of those states. Under the UCC
and laws applicable in most states, a creditor can, without prior notice to the
debtor, repossess a motor vehicle securing a motor vehicle installment contract
by voluntary surrender, by "self-help" repossession without breach of peace, and
by judicial process. The Rees-Levering Act in California and similar laws in
other states place restrictions on repossession sales, including notice to the
debtor of the intent to sell and of the debtor's right to redeem the vehicle. In
addition, the UCC requires commercial reasonableness in the conduct of the sale.
    
 
     In the event of such repossession and resale of a Financed Vehicle, the
Servicer for the benefit of the Trust would be entitled to be paid out of the
sale proceeds before such proceeds could be applied to the payment of the claims
of unsecured creditors or the holders of subsequently perfected security
interests or, thereafter, to the debtor.
 
   
     Under the UCC and laws applicable in most states, a creditor is entitled to
obtain a deficiency judgment from a debtor for any deficiency on repossession
and resale of the motor vehicle securing such debtor's motor vehicle installment
contract. Under California law and the law of most other states the proceeds
from the resale of the motor vehicle securing the debtor's motor vehicle
installment contract are applied first to the expenses of resale and
repossession, and if the remaining proceeds are not sufficient to repay the
indebtedness, the creditor may seek a deficiency judgment for the balance. The
priority of application of proceeds from the sale of repossessed vehicles under
the Contracts originated in most other states is similar.
    
 
     Certain other statutory provisions, including federal and state bankruptcy
and insolvency laws, may limit or delay the ability of the creditor to repossess
and resell collateral or enforce a deficiency judgment.
 
     In the event that deficiency judgments are not satisfied, are satisfied at
a discount or are discharged in whole or in part, in bankruptcy proceedings,
including proceedings under Chapters 7 or 13 of the Bankruptcy Code, the loss
will be borne by the Trust.
 
OTHER MATTERS
 
     The so-called "Holder-in-Due-Course" Rule of the Federal Trade Commission
(the "FTC Rule"), the provisions of which are generally duplicated by the
Uniform Consumer Credit Code, other statutes or the common law, has the effect
of subjecting a seller (and certain related creditors and their assigns) in a
consumer credit transaction to all claims and defenses which the Obligor could
assert against the seller of goods. Liability under the FTC Rule is limited to
amounts paid under a Contract; however, the Obligor may also assert the FTC Rule
to set off remaining amounts due as a defense against a claim brought by the
Trustee against such Obligor.
 
     The courts have imposed general equitable principles on repossession and
litigation involving deficiency balances. These equitable principles may have an
effect of relieving an Obligor from some or all of the legal consequences of a
default.
 
                                       44
<PAGE>   46
 
     Numerous other federal and state consumer protection laws and related
regulations impose requirements applicable to the origination, sale and
servicing of the Contracts, including the Federal Truth-in-Lending Act, the
Federal Trade Commission Act, the Fair Credit Billing Act, the Fair Credit
Reporting Act, the Equal Credit Opportunity Act, the Fair Debt Collection
Practices Act, the Rees-Levering Act, the Magnuson-Moss Warranty Act, the
Federal Reserve Board's Regulations B and Z, the Soldiers' and Sailors' Civil
Relief Act of 1940, state adoptions of the National Consumers Act and of the
Uniform Consumer Credit Code and other state motor vehicle retail installment
sales acts and similar laws. The Seller has represented to the Trust in the
Agreement that each of the Contracts, and the sale of the related Financed
Vehicles sold thereunder, complied with all material requirements of such laws
and the regulations issued pursuant thereto.
 
REPURCHASE OBLIGATION
 
     Under the Agreement, the Seller will make representations and warranties
relating to validity, subsistence, perfection and priority of the security
interest in each Initial Financed Vehicle as of the Closing Date and the
security interest in each Subsequent Financed Vehicle as of the related
Subsequent Transfer Date. See "The Certificates and the Agreement -- Sale and
Assignment of the Contracts." Accordingly, if any defect exists in the
perfection of any such security interest and such defect adversely affects the
Trust's interest in the related Contract, such defect would constitute a breach
of a warranty under the Agreement and would create an obligation of the Seller
to repurchase such Contract unless the breach is cured. Additionally, in the
Agreement the Servicer will make certain representations, warranties and
affirmative covenants regarding, among other things, the maintenance of the
security interest in each Financed Vehicle, the breach of which would create an
obligation of the Servicer to purchase any affected Contract from the Trust
unless the breach is cured.
 
                    CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
     The following is a summary of the material anticipated Federal income tax
consequences of the purchase, ownership, and disposition of Certificates. This
summary is based upon laws, regulations, rulings, and decisions currently in
effect, all of which are subject to change (which change may be retroactive).
The discussion does not deal with all Federal tax consequences applicable to all
categories of investors, some of which may be subject to special rules. In
addition, this summary is generally limited to investors who will hold the
Certificates as "capital assets" (generally, property held for investment)
within the meaning of Section 1221 of the Internal Revenue Code of 1986, as
amended (the "Code"). Consequences to individual investors of investment in the
Certificates will vary according to their individual circumstances. In addition,
this summary generally does not address foreign, state or local taxation issues.
Accordingly, investors should consult their own tax advisors to determine the
Federal, state, local, and other tax consequences of the purchase, ownership,
and disposition of the Certificates. Prospective investors should note that no
rulings have been or will be sought from the Internal Revenue Service (the
"IRS") with respect to any of the Federal income tax consequences discussed
below, and no assurance can be given that the IRS will not take contrary
positions.
 
     BECAUSE MANY OF THE ISSUES DISCUSSED HEREIN ARE COMPLEX AND THEIR
RESOLUTION IS UNCERTAIN, INVESTORS ARE URGED TO CONSULT THEIR TAX ADVISORS TO
DETERMINE THE FEDERAL, STATE, LOCAL, AND FOREIGN TAX CONSEQUENCES OF THE
PURCHASE, OWNERSHIP, AND DISPOSITION OF THE CERTIFICATES.
 
FEDERAL INCOME TAX STATUS OF THE TRUST
 
   
     In the opinion of O'Melveny & Myers LLP, special tax counsel to the Seller,
the Trust will be classified as a grantor trust and not as an association
taxable as a corporation for Federal income tax purposes. Accordingly, subject
to the discussion below, each Certificate Owner will be subject to Federal
income taxation as if it owned directly its interest in each asset owned by the
Trust and paid directly its share of reasonable expenses paid by the Trust.
    
 
                                       45
<PAGE>   47
 
TREATMENT OF CERTIFICATE OWNERS' INTEREST IN TRUST ASSETS
 
     Each Certificate Owner could be considered to own either (i) an undivided
interest in a single debt obligation held by the Trust and having a principal
amount equal to the total stated principal amount of the Contracts and an
interest rate equal to the Pass-Through Rate or (ii) an interest in each of the
Contracts, the Prefunding Account, the rights of the Seller under the
Capitalized Interest Agreement and any other Trust Property. The Agreement will
express the intent of the Seller to sell, and the Certificateholders to
purchase, the Contracts (other than the Retained Strip (as defined below)) and
the Seller, the Certificateholders, and each Certificate Owner, by accepting a
beneficial interest in a Certificate, will agree to treat the Certificates as
ownership interests in the Contracts, the Prefunding Account, the rights of the
Seller under the Capitalized Interest Agreement and any other Trust Property.
 
     Treatment as Debt Obligation.  If a Certificate Owner were considered to
own an undivided interest in a single debt obligation, rather than reporting its
share of the interest accrued on each Contract it would, in general, be required
to include in income interest accrued or received on the principal amount of the
Certificates at the Pass-Through Rate in accordance with its usual method of
accounting.
 
     The Certificates would be subject to the original issue discount ("OID")
rules, generally in the manner discussed below with respect to Stripped
Contracts. However, in determining whether such OID is de minimis, the weighted
average life of the Certificates would be determined using a reasonable
assumption regarding anticipated prepayments (a "Prepayment Assumption"). OID
includible in income for any accrual period (generally, the period between
payment dates) would generally be calculated using a Prepayment Assumption and
an anticipated yield established as of the date of initial sale of the
Certificates, and would increase or decrease to reflect prepayments at a faster
or slower rate than anticipated. The Certificates would also be subject to the
market discount provisions of the Code to the extent that a Certificate Owner
purchased such Certificates at a discount from the initial issue price (as
adjusted to reflect prior accruals of original issue discount).
 
     The remainder of the discussion herein assumes that a Certificate Owner
will be treated as owning an interest in each Contract (and the proceeds
thereof), the Prefunding Account, the rights of the Seller under the Capitalized
Interest Agreement and any other Trust Property, although the Servicer will
report information on an aggregate basis.
 
SPECIFIC TAX ISSUES CONCERNING RULE OF 78'S CONTRACTS
 
   
     For the Rule of 78's Contracts, the purchase price deemed paid by the
Certificate Owners for each Contract will reflect the principal balance of such
Contract as of the Cut-Off Date or related Subsequent Transfer Date, as
applicable, in each case based on the Rule of 78's (the "Cut-Off Date Scheduled
Balance"). Because the Rule of 78's allocates a greater portion of the early
payments under a Contract to interest than the actuarial method, the Cut-Off
Date Scheduled Balance of each Contract exceeds the amount that would have been
its principal balance as of the Cut-Off Date or related Subsequent Transfer
Date, as applicable, in each case if such Contract had been amortized from
origination under an actuarial method (such amount, the "Cut-Off Date Actuarial
Balance").
    
 
     The Trustee and the Servicer intend to account for interest and principal
on the Rule of 78's Contracts using the actuarial method, but based on the
Cut-Off Date Scheduled Balance rather than the Cut-Off Date Actuarial Balance.
As described above, the remaining payments due on a Rule of 78's Contract are
not sufficient to amortize the Cut-Off Date Scheduled Balance of such Contract
at a yield equal to its APR. Accordingly, in order to amortize the Cut-Off Date
Scheduled Balance over the remaining term of the Rule of 78's Contract using the
actuarial method of accounting, the Servicer will recompute the effective yield
of such Contract based on the remaining payments due and the Cut-Off Date
Scheduled Balance (such yield, stated as a per annum rate, the "Recomputed
Yield") and will allocate each payment of Monthly P&I between principal and
interest on each Contract beginning with the Cut-Off Date Scheduled Balance by
applying the Recomputed Yield instead of the APR.
 
                                       46
<PAGE>   48
 
   
     The proper tax method for accounting for the Rule of 78's Contracts is
uncertain. As described above, the Servicer and the Trustee intend to report
income to the Certificate Owners based on the Recomputed Actuarial Method (as
defined below) and assuming for purposes of calculating OID, that the income on
the Scheduled Balance of each Contract, at a rate equal to the Recomputed Yield
minus the Retained Strip, would be treated as "qualified stated interest." See
"-- Discount and Premium -- Original Issue Discount on Stripped Contracts."
Alternatively, the IRS could take the position that a Certificate Owner that
amortizes a Rule of 78's Contract under the Recomputed Actuarial Method (rather
than under the Rule of 78's method) has actually acquired a Contract having an
actual principal balance equal to the Cut-Off Date Actuarial Balance at a
premium equal to the difference between the Cut-Off Date Actuarial Balance and
the Cut-Off Date Scheduled Balance, and that the actuarial method must be
applied from the time of a Contract's origination using its actual APR (such
method, the "Origination Actuarial Method"). In that event (unless the
Certificate Owner were to make a Total Accrual Election, as described
immediately below) it appears likely that the Certificate Owner would be
required to include income at a rate equal to the full APR of the Contract
(minus the Retained Strip) on a balance equal to the Cut-Off Date Actuarial
Balance amortized based on the APR and an actuarial method, and should be
entitled to amortize the difference between the Cut-Off Date Scheduled Balance
and the Cut-Off Date Actuarial Balance to the extent it had a valid election in
effect. See "-- Discount and Premium."
    
 
     As an alternative to separately accruing stated interest, OID, de minimis
OID, market discount, de minimis market discount, unstated interest, premium,
and acquisition premium, a Certificate Owner may elect to include all income
that accrues on the Certificate using the constant yield method. If a
Certificate Owner makes this election (the "Total Accrual Election"), income on
a Certificate will be calculated as though (i) the issue price of the
Certificate were equal to the Certificate Owner's adjusted basis in the
Certificate immediately after its acquisition by the Certificate Owner; (ii) the
Certificate were issued on the Certificate Owner's acquisition date; and (iii)
none of the interest payments on the Certificate are "qualified stated interest"
payments. A Certificate Owner may make such an election for a Certificate that
has premium or market discount, respectively, only if the Certificate Owner
makes, or has previously made, an election to amortize bond premium or to
include market discount in income currently.
 
     If a Rule of 78's Contract is prepaid in full, any amount collected from
the Obligor pursuant to the Contract in excess of the principal balance thereof
and accrued interest thereon, computed using the actuarial method and the
Recomputed Yield, as described above (such method, the "Recomputed Actuarial
Method" and such amount, the "Recomputed Principal Balance"), will be paid to
the owner of retained yield. Such amount may be treated as additional income in
the nature of a prepayment penalty to a Certificate Owner who had reported
income with respect to the Contracts on the Recomputed Actuarial Method, and
would be deductible only to the extent described below. Alternatively, such
amount might be treated as an interest in the Contract retained by the owner of
retained yield, in which event it would not be included in a Certificate Owner's
income.
 
INCOME ON ALL CONTRACTS
 
   
     For federal income tax purposes, the owner of retained yield will be
treated as having retained a portion (the "Retained Strip") of the interest due
on each Contract having a yield in excess of      % calculated using the
actuarial method (each, a "Stripped Contract") equal to the difference between
(x) the Recomputed Yield of the Contract and (y)      %. The Retained Strip will
be treated as "stripped coupons" within the meaning of Section 1286 of the Code,
and the Stripped Contracts will be treated as "stripped bonds." If, as described
above, the IRS were to take the position that the Origination Actuarial Method
must be applied, the Retained Strip would consist of a different portion of the
interest that accrues at the APR on the actuarial principal balance of a
Contract for each monthly period over which interest accrues on such Contract
("Contract Due Period").
    
 
     Each Certificate Owner will be required to report on its federal income tax
return its share of the gross income of the Trust, including interest and
certain other charges accrued on the Contracts and original issue discount and
market discount (to the extent described below), investment earnings on amounts
held pending distribution, and any gain upon collection or disposition of the
Contracts. Such income (other than any
 
                                       47
<PAGE>   49
 
original issue discount or market discount, as described below) will be
includible in income in accordance with a Certificate Owner's usual method of
accounting. Accordingly, interest will be includible in a Certificate Owner's
gross income at the time it accrues on the Contracts, or, in the case of
Certificate Owners who are cash basis taxpayers, when received by the Servicer
on behalf of Certificate Owners. Because (i) interest accrues on the Contracts
over differing monthly periods and is paid in arrears and (ii) interest
collected on a Contract is generally paid to Certificate Owners in the following
month, the amount of interest accruing to a Certificate Owner during any month
will not equal the interest distributed in that month.
 
   
     A Certificate Owner will be entitled to deduct, consistent with its method
of accounting, its pro rata share of reasonable servicing fees and other fees
paid or incurred by the Trust as provided in Section 162 or 212 of the Code. If
a Certificate Owner is an individual, estate or trust, the deduction for such
holder's share of such fees will be allowed only to the extent that all of such
holder's miscellaneous itemized deductions, including such holder's share of
such fees, exceed 2% of such holder's adjusted gross income. In addition, in the
case of Certificate Owners who are individuals, certain otherwise allowable
itemized deductions will be reduced, but not by more than 80%, by an amount
equal to 3% of such holder's adjusted gross income in excess of a statutorily
defined threshold ($124,500 in the case of a married couple filing jointly for
the taxable year beginning in 1998 and will be adjusted for inflation each year
thereafter). The Servicer will not report to Certificate Owners the amount of
income or deductions attributable to interest earned on collections and certain
other amounts (which are includible in gross income, but the deductions of which
are subject to the foregoing limitations) and, accordingly, such a holder will
not have sufficient information from the report itself to accurately reflect the
holder's net taxable income.
    
 
     For administrative convenience, the Servicer intends to report the total
amount of income with respect to the Certificates on an aggregate basis (as
though all of the Contracts were a single obligation), rather than on an
asset-by-asset basis. The amount and, in some instances, character, of the
income reported to a Certificate Owner may differ under this method for a
particular period from that which would be reported if income were reported on a
precise asset-by-asset basis. Accordingly, the IRS could require that a
Certificate Owner calculate its income either (i) on an asset-by-asset basis,
accounting separately for each Contract, or (ii) aggregating all Stripped
Contracts under the aggregation rule described below and accounting for the
remaining Contracts on an asset-by-asset basis. If reporting on an aggregate
basis results in under-reporting of income, or if the IRS were to take a
position different from that adopted by the Trust with respect to any issue, a
Certificate Owner could be required to pay interest on underpayments of tax and
could be subject to penalties for under-reporting of income. See "-- Discount
and Premium -- Original Issue Discount on Stripped Contracts." In computing its
income on an asset-by-asset basis, a Certificate Owner would allocate its tax
basis among the Contracts in proportion to their fair market values. Because the
Recomputed Yields of the Contracts vary widely, the allocation of basis and
computation of income on an asset-by-asset basis could have a more significant
effect on the income of a Certificate Owner than it would if the Contracts had
more uniform characteristics.
 
     The remainder of the disclosure generally describes the Code provisions
governing reporting of income on the Contracts on a separate asset basis.
 
DISCOUNT AND PREMIUM
 
     In determining whether a Certificate Owner has purchased its interest in
the Contracts (or any Contract) at a discount and whether such Contracts (or any
Contract) have OID or market discount, a portion of the purchase price of a
Certificate should be allocated to the Certificate Owner's undivided interest in
accrued but unpaid interest and amounts collected at the time of purchase but
not distributed. As a result, the portion of the purchase price allocable to a
Certificate Owner's undivided interest in the Contracts (or any Contract) (the
"Purchase Price") will be decreased and the potential OID and/or market discount
on the Contracts (or any Contract) could be increased.
 
     Original Issue Discount on Stripped Contracts. Because the Stripped
Contracts represent stripped bonds, they will be subject to the OID rules of the
Code. Under Treasury Regulations issued under Section 1286 of the Code (the
"Section 1286 Regulations"), it appears that, in general, the portion of the
interest on each
 
                                       48
<PAGE>   50
 
   
Contract payable to the Certificate Owners may be treated as "qualified stated
interest." As a result, the amount of OID on a Contract (or Contracts) will
equal the amount, if any, by which the Purchase Price is less than the portion
of the remaining principal balance of the Contract (or Contracts) allocable to
the interest acquired. However, if the IRS were to take the position that the
Origination Actuarial Method must be applied, then a Certificate Owner would be
deemed to receive interest at a different rate for each Collection Period and
the remainder of the interest deemed to accrue at the Contract's APR on the
actuarial principal balance would be included in the Retained Strip. As a
result, it appears that none of the interest on the Stripped Contracts would be
"qualified stated interest." In that event, the entire yield deemed to accrue to
a Certificate Owner would be includible in income as OID, based on a yield which
should generally equal a rate equal to      %.
    
 
     The Trustee will calculate OID, if any, on all of the Contracts (including
Stripped Contracts) on an aggregate basis and without the use of a prepayment
assumption. Regulations issued under the OID provisions of the Code (the "OID
Regulations") suggest that all payments on the Stripped Contracts that are
allocable to the Certificates may be aggregated in determining whether the
Stripped Contracts will be treated as having OID, although the regulation does
not include the Contracts that are not "stripped bonds." Separate accounting for
the Stripped Contracts and the Contracts that are not stripped would reduce the
possibility that the Stripped Contracts would be treated as issued with OID;
however, as discussed below, any Contracts having a yield equal to      % (using
a Recomputed Yield for Rule of 78's Contracts) may be treated as having imputed
interest, market discount, or both. In addition, it is not clear whether use of
a prepayment assumption is required in computing OID. If the IRS were to require
that OID be computed on a Contract-by-Contract basis, or that a prepayment
assumption be used, the character and timing of a Certificate Owner's income
could be adversely affected. Because under the stripped bond rules each sale of
a Certificate results in a recalculation of OID, a Certificate Owner technically
will not be subject to the market discount provisions of the Code with respect
to Stripped Contracts.
 
   
     The tax treatment of a Stripped Contract (or the Stripped Contracts in the
aggregate) will depend upon whether the amount of OID on the Contract or
Contracts is less than a statutorily defined de minimis amount. In general,
under the Section 1286 Regulations the amount of OID on a Stripped Contract will
be de minimis if it is less than 1/4 of one percent for each full year of
weighted average maturity remaining after the purchase date until the maturity
of the Contract (although it is not clear whether expected prepayments are taken
into account). If the amount of OID is de minimis under this rule, a Stripped
Contract would not be treated as having OID. In such case, the actual amount of
discount on a Stripped Contract would be includible in income as principal
payments are received on the Contract, in the proportion that each principal
payment bears to the total principal amount of the Contract. If the IRS were to
require the use of the Origination Actuarial Method, the OID on a Contract would
not be de minimis.
    
 
     If the OID on a Contract (or Contracts) is not treated as being de minimis,
a Certificate Owner will be required to include in income any OID as it accrues
on a daily basis, regardless of when cash payments are received, using a method
reflecting a constant yield to maturity on the Contract (or Contracts). Accrued
OID would increase a Certificate Owner's tax basis in the Certificate (and the
applicable Contracts). Distributions of principal and other items attributable
to accrued OID (other than payments of interest on the Contracts at      %)
would reduce a Certificate Owner's tax basis. Application of the OID rules,
particularly if a prepayment assumption is required and the Contracts are not
aggregated, would be complex and could significantly affect the timing of
inclusion of income on a Certificate.
 
     The Trustee intends to account for OID, if any, reportable by holders of
Certificates by reference to the price paid for a Certificate by an initial
purchaser, although the amount of OID will differ for subsequent purchasers.
Such subsequent purchasers should consult their tax advisors regarding the
proper calculation of OID on the interest in Contracts represented by a
Certificate.
 
     Market Discount. Contracts, other than the Stripped Contracts, will not be
treated as stripped bonds. However, to the extent that the portion of the
purchase price allocated to a Certificate Owner's undivided interest in a
Contract other than a Stripped Contract is less than the "stated redemption
price at maturity",
 
                                       49
<PAGE>   51
 
such Contract could have market discount. The market discount on such a Contract
will be considered to be zero if it is less than a statutorily defined de
minimis amount.
 
   
     In general, under the market discount provisions of the Code, principal
payments received by the Trust and all or a portion of the gain recognized upon
a sale or other disposition of a Contract or upon the sale or other disposition
of a Certificate in an amount in excess of accrued market discount will be
treated as capital gain, assuming such Certificate Owner held such Certificate
as a capital asset. In addition, a portion of the interest deductions of the
Certificate Owner attributable to any indebtedness treated as incurred or
continued to purchase or carry a Contract may have to be deferred, unless a
Certificate Owner makes an election to include market discount in income
currently as it accrues, which election would apply to all debt instruments
acquired by the taxpayer on or after the first day of the first taxable year to
which such election applies. Taxpayers may, in general, elect to accrue market
discount either under a constant yield-to-maturity method or in the proportion
that the period the taxpayer held the obligation bears to the period from the
date the taxpayer acquired the obligation until the maturity of such obligation.
    
 
     Premium. In the event that a Contract is treated as purchased at a premium
(i.e., its Purchase Price exceeds the portion of the remaining principal balance
of such Contract allocable to the Certificate Owner), such premium will be
amortizable by the Certificate Owner as an offset to interest income (with a
corresponding reduction in the Certificate Owner's basis) under a constant
yield-to-maturity method over the term of the Contract if an election under
Section 171 of the Code is made with respect to the interests in the Contracts
represented by the Certificates or was previously in effect. Any such election
will also apply to all debt instruments held by the Certificate Owner during the
year in which the election is made and all debt instruments acquired thereafter.
 
SALE OF A CERTIFICATE
 
     If a Certificate is sold, gain or loss will be recognized equal to the
difference between the amount realized on the sale and the Certificate Owner's
adjusted basis in the Contracts and any other assets held by the Trust. A
Certificate Owner's adjusted basis will equal the Certificate Owner's cost for
the Certificate, increased by any discount previously included in income, and
decreased by any deduction previously allowed for accrued premium and by the
amount of principal payments previously received on the Contracts. Any gain or
loss not attributable to accrued interest or accrued market discount will be
capital gain or loss if the Certificate was held as a capital asset.
 
FOREIGN CERTIFICATE OWNER
 
   
     Interest attributable to Contracts which is payable to a foreign
Certificate Owner that is not engaged in a trade or business in the United
States will generally not be subject to the 30% withholding tax generally
imposed with respect to such payments, provided that such Certificate Owner
fulfills certain certification requirements. Under such certification
requirements, the Certificate Owner must certify, under penalties of perjury,
that it is not a "United States person" and it is the beneficial owner of the
Certificates, and must provide its name and address. For this purpose, "United
States person" means a citizen or resident of the United States, a corporation,
partnership, or other entity created or organized in or under the laws of the
United States or any political subdivision thereof (except, in the case of a
partnership as otherwise provided by regulations), an estate, the income of
which is includible in gross income for United States federal income tax
purposes regardless of its source or a trust whose administration is subject to
the primary supervision of a United States court and which has one or more
United States persons who have authority to control all substantial decisions of
the trust.
    
 
   
     Final Treasury Regulations (the "Final Regulations") could affect the
procedures to be followed by a nonresident investor in complying with United
States Federal withholding, backup withholding and information reporting rules
for payments made after December 31, 1998. Prospective investors are urged to
consult their tax advisors regarding the effect, if any, of the Final
Regulations on the purchase, ownership and disposition of the Certificates.
    
 
                                       50
<PAGE>   52
 
BACKUP WITHHOLDING
 
     Payments made on the Certificates and proceeds from the sale of
Certificates will not be subject to a "backup" withholding tax of 31% unless, in
general, the Certificate Owner fails to comply with certain reporting procedures
and is not an exempt recipient under applicable provisions of the Code.
 
                              ERISA CONSIDERATIONS
 
   
     The Employee Retirement Income Security Act of 1974, as amended ("ERISA"),
and Section 4975 of the Code imposes certain restrictions on (i) employee
benefit plans subject to ERISA, (ii) "plans" (as defined in Section 4975(e)(1)
of the Code) and (iii) entities whose underlying assets include plan assets by
reason of a plan's investment in such entities (each, a "Plan"), and on persons
who have certain specified relationships to such Plans ("Parties in Interest"
under ERISA and "Disqualified Persons" under the Code). ERISA also imposes
certain duties on persons who are fiduciaries of Plans subject to ERISA, and
ERISA and the Code prohibit certain transactions between a Plan and Parties in
Interest or Disqualified Persons with respect to such Plans. Under ERISA, any
person who exercises any discretionary authority or control respecting the
management or disposition of the assets of a Plan is considered to be a
fiduciary of such Plan (subject to certain exceptions not here relevant.)
    
 
     The Department of Labor ("DOL") has issued a final regulation (29 C.F.R.
Section 2510.3-101) concerning the definition of what constitutes the assets of
a Plan (the "Plan Asset Regulation"). This regulation provides that, as a
general rule, the underlying assets and properties of corporations,
partnerships, grantor trusts and certain other entities in which a Plan (which
is subject to Title I of ERISA and/or Section 4975 of the Code) makes an
"equity" investment will be deemed to be assets of the investing Plan unless
certain exceptions apply. The Plan Asset Regulation contains certain exceptions
to this general rule. Accordingly if a Plan purchases the Certificates, the
Trust could be deemed to hold plan assets unless one of the exceptions under the
Plan Assets Regulation is applicable to the Trust.
 
   
     Under the terms of the Plan Asset Regulation, if the Trust were deemed to
hold plan assets by reason of a Plan's investment in Certificates, such plan
assets would include an undivided interest in the Trust and Contracts underlying
the Trust and any other assets held by the Trust. In such an event, the persons
providing services with respect to the assets of the Trust, including the
Contracts, may be subject to the fiduciary responsibility provisions of Title I
of ERISA. In addition, those persons and certain other persons, including
Obligors on the receivables held in the Trust, may be subject to the prohibited
transaction provisions of ERISA and Section 4975 of the Code with respect to
certain transactions involving such assets or the Certificates, unless a
statutory or administrative exemption from the prohibited transaction rules
applies.
    
 
   
     The DOL has granted to Merrill Lynch, Pierce, Fenner & Smith Incorporated
an administrative exemption (Prohibited Transaction Exemption 90-29, as amended
(the "Exemption")) from certain of the prohibited transaction rules of ERISA
with respect to the initial purchase, the holding and the subsequent resale by
Plans of certificates representing interests in asset backed pass-through trusts
that consist of certain receivables, loans and other obligations that meet the
conditions and requirements of the Exemption. On July 21, 1997, the DOL adopted
an Amendment to Prohibited Transaction Exemptions (Prohibited Transaction
Exemption 97-34) that modified the Exemption with respect to transactions, such
as this one, that utilize prefunding. The receivables covered by the Exemption
include motor vehicle installment loans such as the Contracts. The Exemption
will apply to the acquisition, holding and resale of the Certificates purchased
by a Plan from the Underwriter, provided that all conditions of the Exemption
(certain of which are described below) are met.
    
 
   
     Among the conditions that must be satisfied for the Exemption to apply are
the following:
    
 
   
           (1) The acquisition of the Certificates by or on behalf of a Plan is
     on terms (including the price for the Certificates) that are at least as
     favorable to the Plan as they would be in an arm's-length transaction with
     an unrelated party;
    
 
                                       51
<PAGE>   53
 
   
           (2) The rights and interests evidenced by the Certificates acquired
     by or on behalf of the Plan are not subordinated to the rights and
     interests evidenced by other certificates of the Trust;
    
 
   
           (3) The Certificates acquired by or on behalf of the Plan have
     received a rating at the time of such acquisition that is in one of the
     three highest generic rating categories from either Standard & Poor's,
     Moody's, Duff & Phelps Inc. or Fitch Investors Service, Inc.;
    
 
           (4) The Trustee must not be an affiliate of any other member of the
     Restricted Group (as defined below);
 
           (5) The sum of all payments made to the Underwriter in connection
     with the distribution of the Certificates represents not more than
     reasonable compensation for underwriting the Certificates; the sum of all
     payments made to and retained by the Seller pursuant to the sale of the
     Contracts to the Trust represents not more than the fair market value of
     such Contracts; the sum of all payments made to and retained by the
     Servicer represents not more than reasonable compensation for the
     Servicer's services under the Agreement and reimbursement of the Servicer's
     reasonable expenses in connection therewith;
 
           (6) The Plan investing in the Certificates is an "accredited
     investor" as defined in Rule 501(a)(1) of the Regulation D of the
     Securities and Exchange Commission under the Securities Act of 1933, as
     amended;
 
   
           (7) The principal amount of obligations added to the Trust after the
     Closing Date does not exceed 25% of the principal balance of the
     certificates being offered as of the Closing Date;
    
 
   
           (8) All such additional obligations meet the same terms and
     conditions for eligibility as the obligations originally included in the
     Trust (which terms and conditions have been approved by one of the
     above-named rating agencies) except that such terms and conditions may be
     modified with the prior approval of a rating agency or of a majority of the
     holders of the certificates offered;
    
 
   
           (9) The addition of obligations during the funding period does not
     result in a ratings downgrade;
    
 
          (10) The weighted average annual percentage rate of all obligations in
     the Trust at the end of the funding period is not more than 100 basis
     points lower than such weighted average as of the closing date;
 
          (11) The characteristics of the additional obligations are monitored
     by a third party credit enhancer or certificate insurer which is
     independent of the sponsor of the Trust, or an independent accountant
     delivers a letter (with copies to the relevant rating agencies,
     underwriters and trustee) stating that the characteristics of the
     additional obligations conform to the characteristics with respect thereto
     specified in the offering documents;
 
   
          (12) The funding period ends no later than 90 days after the Closing
     Date; and
    
 
   
          (13) Amounts on deposit in the Prefunding Account and/or related
     Capitalized Interest Account are invested only in investments permitted by
     the relevant rating agencies that are (i) direct obligations of or fully
     guaranteed by the United States or any agency or instrumentality thereof or
     (ii) rated (or issued by an issuer rated) in one of the three highest
     generic rating categories by the relevant rating agencies.
    
 
     The Exemption provides relief from certain self-dealing/conflict of
interest prohibited transactions that may occur when the Plan fiduciary causes a
Plan to acquire certificates in a trust in which the fiduciary (or his
affiliate) is an Obligor on the receivables held in the trust provided that,
among other requirements: (i) in the case of an acquisition in connection with
the initial issuance of Certificates, at least 50% of each class of Certificates
in which Plans have invested is acquired by persons independent of the
Restricted Group and at least 50% of the aggregate interest in the trust is
acquired by persons independent of the Restricted Group; (ii) such fiduciary (or
its affiliate) is an Obligor with respect to 5% or less of the fair market value
of the obligations contained in the trust; (iii) the Plan's investment in
Certificates does not exceed 25% of all of the Certificates outstanding at the
time of the acquisition; and (iv) immediately after the acquisition, no more
than 25% of the assets of the Plan are invested in certificates representing an
interest in one or more trusts containing assets sold or serviced by the same
entity. The Exemption does not apply to Plans sponsored by the Seller, the
Underwriter, the Trustee, the Servicer, the Insurer, any Obligor with respect to
Contracts included in the Trust constituting more than 5% of the aggregate
unamortized principal balance of the assets in the Trust, or any affiliate of
such parties (the "Restricted Group").
 
                                       52
<PAGE>   54
 
   
     As of the date hereof, no Obligor with respect to Contracts included in the
Trust constitutes more than 5% of the aggregate unamortized principal balance of
the assets of the Trust. Because the Certificates are the only class of
certificates to be issued by the Trust, the second general condition described
above is satisfied. It is a condition of the issuance of the Certificates that
they be rated in the highest rating category by at least two Rating Agencies. A
fiduciary of a Plan contemplating the purchase of a Certificate (other than
pursuant to the original issuance of the Certificates) must make its own
determination that at the time of such acquisition, the Certificates continue to
satisfy the third general condition described above. The Seller and the Servicer
expect that the fourth general condition set forth above will be satisfied with
respect to the Certificates. A fiduciary of a Plan contemplating purchasing a
Certificate must make its own determination that the first, fifth and sixth
general conditions set forth above will be satisfied with respect to its
purchase of Certificates.
    
 
   
     Conditions seven through thirteen above are requirements of the Servicer
and Insurer, as applicable, as set forth in the Agreement. Any Plan fiduciary
considering the purchase of Certificates should consult with its counsel with
respect to the applicability of the Exemption and other issues and determine on
its own whether all conditions for exemptive relief have been satisfied and
whether, under the general fiduciary standards of prudent investment and
diversification, the Certificates are otherwise an appropriate investment for a
Plan under ERISA and the Code.
    
 
                                       53
<PAGE>   55
 
                                  UNDERWRITING
 
     Subject to the terms and conditions set forth in the Underwriting Agreement
dated December   , 1997 (the "Underwriting Agreement") between the Seller and
Merrill Lynch, Pierce, Fenner & Smith Incorporated (the "Underwriter"), the
Seller has agreed to sell to the Underwriter, and the Underwriter has agreed to
purchase the entire principal amount of the Certificates.
 
     The Seller has been advised by the Underwriter that it proposes initially
to offer the Certificates to the public at the public offering price set forth
on the cover page of this prospectus and to certain dealers at such price less a
concession not in excess of      % of the principal amount thereof. The
Underwriter may allow, and such dealers may reallow, a discount not in excess of
     % of the principal amount of the Certificates on sales to certain other
dealers. After the initial public offering, the public offering price of the
Certificates and such concession and discount may be changed. The Underwriter is
obligated to purchase and pay for all of the Certificates if any Certificates
are purchased. The Underwriter currently intends, but is not obligated, to make
a market in the Certificates.
 
     During and after the offering, the Underwriter may purchase and sell the
Certificates in the open market in transactions in the United States. These
transactions may include overallotment and stabilizing transactions and
purchases to cover short positions created in connection with the offering. The
Underwriter also may impose a penalty bid, whereby selling concessions allowed
to broker-dealers in respect of the Certificates sold in the offering for their
account may be reclaimed by the Underwriter if such Certificates are repurchased
by the Underwriter in stabilizing or covering transactions. These activities may
stabilize, maintain or otherwise affect the market price of the Certificates,
which may be higher than the price that might otherwise prevail in the open
market. These transactions may be effected in the over-the-counter market or
otherwise, and these activities, if commenced, may be discontinued at any time.
 
     The Seller and Onyx have agreed to indemnify the Underwriter against
certain liabilities, including liabilities under applicable securities laws, or
contribute to payments the Underwriter may be required to make in respect
thereof.
 
                                 LEGAL MATTERS
 
   
     Certain matters with respect to the legality of the Certificates and with
respect to the federal income tax matters discussed under "Certain Federal
Income Tax Consequences" will be passed upon for the Seller by O'Melveny & Myers
LLP, Los Angeles, California. Certain legal matters with respect to the
Certificates will be passed upon for the Underwriter by Skadden, Arps, Slate,
Meagher & Flom LLP, New York, New York. Certain legal matters relating to the
Surety Bond will be passed upon for the Insurer by Shaw Pittman Potts &
Trowbridge, New York, New York.
    
 
                                    EXPERTS
 
     The financial statements of Capital Markets Assurance Corporation as of
December 31, 1996 and 1995 and for each of the years in the three-year period
ended December 31, 1996 are included herein beginning on page F-1 and have been
audited by KPMG Peat Marwick LLP, independent certified public accountants, as
set forth in their report thereon and are included in reliance upon the
authority of such firm as experts in accounting and auditing.
 
                                       54
<PAGE>   56
 
                         INDEX OF PRINCIPAL DEFINITIONS
 
   
<TABLE>
<S>                                                                               <C>
Aggregate Scheduled Balance.....................................................         5, 28
Aggregate Scheduled Balance Decline.............................................         5, 28
Agreement.......................................................................             3
APR.............................................................................            20
Auto Finance Centers............................................................            15
Bankruptcy Code.................................................................            26
Blanket Insurance Policy........................................................            16
Business Day....................................................................             4
Capitalized Interest Account....................................................         7, 30
Capitalized Interest Agent......................................................            30
Capitalized Interest Agreement..................................................             4
Capitalized Interest Amount.....................................................         7, 30
Cede............................................................................        10, 27
Certificateholder...............................................................            31
Certificate Owner...............................................................        10, 24
Certificates....................................................................          1, 3
Closing Date....................................................................         6, 11
Code............................................................................            45
Collection Account..............................................................            34
Collection Period...............................................................         5, 27
Commission......................................................................             2
Contract Due Period.............................................................            47
Contracts.......................................................................          1, 4
Cut-Off Date....................................................................             1
Cut-Off Date Actuarial Balance..................................................            46
Cut-Off Date Scheduled Balance..................................................     3, 20, 46
Dealers.........................................................................             8
Defaulted Contract..............................................................         6, 28
Definitive Certificates.........................................................            31
Distribution Date...............................................................          1, 4
Distribution Date Statement.....................................................            36
Disqualified Persons............................................................            51
DOL.............................................................................            51
Due Date........................................................................            17
DTC.............................................................................      1, 2, 10
Eligibility Requirements........................................................            21
Eligible Account................................................................            29
Eligible Investments............................................................            29
ERISA...........................................................................         9, 51
Exchange Act....................................................................             2
Exemption.......................................................................            51
Events of Default...............................................................            39
Final Distribution Date.........................................................          1, 4
Financed Vehicles...............................................................          1, 4
FTC Rule........................................................................            44
Full Prepayment.................................................................            24
Funding Period..................................................................         6, 29
Holder-in-Due-Course............................................................            44
Holders.........................................................................            32
Holdings........................................................................            37
</TABLE>
    
 
                                       55
<PAGE>   57
 
   
<TABLE>
<S>                                                                               <C>
Indirect Participants...........................................................            31
Initial Contracts...............................................................          1, 3
Initial Financed Vehicles.......................................................          1, 3
Insolvency Laws.................................................................            12
Insurance Agreement.............................................................             8
Insurer.........................................................................          1, 4
Interest Distribution...........................................................      1, 4, 27
IRS.............................................................................            45
Liquidated Contract.............................................................         5, 28
Liquidation Expenses............................................................            35
Mandatory Partial Prepayment....................................................             6
Monthly P&I.....................................................................         5, 28
Moody's.........................................................................            34
Motor Vehicle Contracts.........................................................            14
Net Insurance Proceeds..........................................................            35
Net Liquidation Proceeds........................................................            35
Obligor.........................................................................            13
OCS.............................................................................            17
OID.............................................................................            46
OID Regulations.................................................................            49
Onyx............................................................................      1, 3, 26
Origination Actuarial Method....................................................            47
Original Pool Balance...........................................................             9
Participants....................................................................        27, 30
Parties in Interest.............................................................            51
Pass-Through Rate...............................................................             4
Payaheads.......................................................................         9, 34
Payahead Account................................................................            35
Paying Agent....................................................................            31
Plan............................................................................            51
Plan Asset Regulation...........................................................            51
Pool Balance....................................................................         4, 27
Pool Factor.....................................................................            25
Prefunded Amount................................................................             6
Prefunding Account..............................................................         4, 29
Prepayment Assumption...........................................................            46
Principal Distribution..........................................................      1, 5, 28
Proposed Regulations............................................................            50
Purchase Agreement..............................................................            26
Purchase Price..................................................................            48
Recomputed Actuarial Method.....................................................        21, 47
Recomputed Principal Balance....................................................            47
Recomputed Yield................................................................        21, 40
Record Date.....................................................................            28
Rees-Levering Act...............................................................            44
Repurchase Amount...............................................................            34
Restricted Group................................................................            52
Retained Strip..................................................................            47
Rule of 78's Contracts..........................................................         8, 20
Scheduled Balance...............................................................         5, 28
Section 1286 Regulations........................................................            48
Seller..........................................................................      1, 3, 14
Servicer........................................................................          1, 3
</TABLE>
    
 
                                       56
<PAGE>   58
 
   
<TABLE>
<S>                                                                               <C>
Servicer Report Date............................................................             8
Servicing Fee...................................................................             7
Servicing Fee Rate..............................................................         7, 36
Simple Interest Contracts.......................................................         8, 20
Simple Interest Method..........................................................            20
Standard & Poor's...............................................................            34
Stripped Contract...............................................................            47
Subsequent Closing Date.........................................................         9, 33
Subsequent Contracts............................................................             4
Subsequent Financed Vehicles....................................................          1, 4
Subsequent Transfer Date........................................................          1, 4
Surety Bond.....................................................................       1, 4, 7
Total Accrual Election..........................................................            47
Transfer Certificate............................................................            32
Trust...........................................................................      1, 3, 14
Trust Property..................................................................         3, 14
Trustee.........................................................................         3, 14
UCC.............................................................................        11, 42
Underwriter.....................................................................            54
Underwriting Agreement..........................................................            54
</TABLE>
    
 
                                       57
<PAGE>   59
                      CAPITAL MARKETS ASSURANCE CORPORATION

                              FINANCIAL STATEMENTS

                        DECEMBER 31, 1996, 1995 AND 1994

                   (WITH INDEPENDENT AUDITORS' REPORT THEREON)






                                      F-1
<PAGE>   60

                          INDEPENDENT AUDITORS' REPORT
                          ----------------------------

The Board of Directors
Capital Markets Assurance Corporation:

We have audited the accompanying balance sheets of Capital Markets Assurance
Corporation as of December 31, 1996 and 1995 and the related statements of
income, stockholder's equity and cash flows for each of the years in the
three-year period ended December 31, 1996. These financial statements are the
responsibility of the Company's management. Our responsibility is to express an
opinion on these financial statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the financial position of Capital Markets Assurance
Corporation as of December 31, 1996 and 1995 and the results of its operations
and its cash flows for each of the years in the three-year period ended December
31, 1996 in conformity with generally accepted accounting principles.


                                        /s/  KPMG PEAT MARWICK LLP
                                        -----------------------------
                                             KPMG PEAT MARWICK LLP

January 29, 1997





                                      F-2
<PAGE>   61
                      CAPITAL MARKETS ASSURANCE CORPORATION

                                 BALANCE SHEETS
                  (DOLLARS IN THOUSANDS, EXCEPT PER SHARE DATA)

                                     ASSETS
                                     

<TABLE>
<CAPTION>
                                                              December 31   December 31
                                                                     1996          1995
- ---------------------------------------------------------------------------------------
<S>                                                              <C>           <C>
INVESTMENTS:

Bonds at fair value (amortized cost $294,861 at December 31,
  1996 and $210,651 at December 31, 1995)                        $297,893       215,706
Short-term investments (at amortized cost which approximates
  fair value)                                                      16,810        68,646
- ---------------------------------------------------------------------------------------
   Total investments                                              314,703       284,352
- ---------------------------------------------------------------------------------------
Cash                                                                  371           344
Accrued investment income                                           3,807         3,136
Deferred acquisition costs                                         45,380        35,162
Premiums receivable                                                 5,141         3,540
Prepaid reinsurance                                                18,489        13,171
Other assets                                                        6,424         3,428
- ---------------------------------------------------------------------------------------
   TOTAL ASSETS                                                  $394,315       343,133
=======================================================================================

                      LIABILITIES AND STOCKHOLDER'S EQUITY

LIABILITIES:

Unearned premiums                                                $ 68,262       45,767
Reserve for losses and loss adjustment expenses                    10,985        6,548
Ceded reinsurance                                                   1,738        2,469
Accounts payable and other accrued expenses                         8,019       10,844
Current income taxes                                                  679          136
Deferred income taxes                                              15,139       11,303
- --------------------------------------------------------------------------------------
   Total liabilities                                              104,822       77,067
- --------------------------------------------------------------------------------------

STOCKHOLDER'S EQUITY:

Common stock - $1.00 par value per share; 15,000,000
  shares are authorized, issued and outstanding at
  December 31, 1996 and 1995                                       15,000       15,000
Additional paid-in capital                                        208,475      205,808
Unrealized appreciation on investments, net of tax                  1,970        3,286
Retained earnings                                                  64,048       41,972
- --------------------------------------------------------------------------------------
   Total stockholder's equity                                     289,493      266,066
- --------------------------------------------------------------------------------------
   TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY                    $394,315      343,133
======================================================================================
</TABLE>

                 See accompanying notes to financial statements.





                                      F-3
<PAGE>   62
                      CAPITAL MARKETS ASSURANCE CORPORATION

                              STATEMENTS OF INCOME
                             (DOLLARS IN THOUSANDS)

<TABLE>
<CAPTION>
                                            Year Ended          Year Ended          Year Ended
                                     December 31, 1996   December 31, 1995   December 31, 1994
- ----------------------------------------------------------------------------------------------
<S>                                   <C>                  <C>                <C>   
REVENUES:

Direct premiums written                      $ 71,752               56,541             43,598
Assumed premiums written                        1,086                  935              1,064
Ceded premiums written                        (15,104)             (15,992)           (11,069)
- ---------------------------------------------------------------------------------------------
   Net premiums written                        57,734               41,484             33,593
Increase in unearned premiums                 (17,177)             (12,242)           (10,490)
- ---------------------------------------------------------------------------------------------
   Net premiums earned                         40,557               29,242             23,103
Net investment income                          16,992               11,953             10,072
Net realized capital gains                        236                1,301                 92
Other income                                      146                2,273                120
- ---------------------------------------------------------------------------------------------
   Total revenues                              57,931               44,769             33,387
- ---------------------------------------------------------------------------------------------
EXPENSES:

Losses and loss adjustment expenses             4,815                3,141              1,429
Underwriting and operating expenses            14,613               13,808             11,833
Policy acquisition costs                        7,824                7,203              4,529
- ---------------------------------------------------------------------------------------------
   Total expenses                              27,252               24,152             17,791
- ---------------------------------------------------------------------------------------------
   Income before income taxes                  30,679               20,617             15,596
- ---------------------------------------------------------------------------------------------

INCOME TAXES:

Current income tax                              5,235                2,113                865
Deferred income tax                             3,368                3,102              2,843
- ---------------------------------------------------------------------------------------------
   Total income taxes                           8,603                5,215              3,708
- ---------------------------------------------------------------------------------------------
   NET INCOME                                $ 22,076               15,402             11,888
=============================================================================================
</TABLE>


                See accompanying notes to financial statements.





                                      F-4
<PAGE>   63
                      CAPITAL MARKETS ASSURANCE CORPORATION

                       STATEMENTS OF STOCKHOLDER'S EQUITY
                             (DOLLARS IN THOUSANDS)

<TABLE>
<CAPTION>
                                                       Year Ended          Year Ended          Year Ended
                                                December 31, 1996   December 31, 1995   December 31, 1994
- ---------------------------------------------------------------------------------------------------------
<S>                                             <C>                 <C>                  <C>   
COMMON STOCK:

Balance at beginning of year                            $  15,000              15,000              15,000
- ---------------------------------------------------------------------------------------------------------
   Balance at end of year                                  15,000              15,000              15,000
- ---------------------------------------------------------------------------------------------------------

ADDITIONAL PAID-IN CAPITAL:

Balance at beginning of year                              205,808             146,808             146,808
Capital contribution                                        2,667              59,000                  --
- ---------------------------------------------------------------------------------------------------------
   Balance at end of year                                 208,475             205,808             146,808
- ---------------------------------------------------------------------------------------------------------
UNREALIZED APPRECIATION (DEPRECIATION)
ON INVESTMENTS, NET OF TAX:

Balance at beginning of year                                3,286              (5,499)              3,600
Unrealized appreciation (depreciation)
  on investments                                           (1,316)              8,785              (9,099)
- ---------------------------------------------------------------------------------------------------------
   Balance at end of year                                   1,970               3,286              (5,499)
- ---------------------------------------------------------------------------------------------------------
RETAINED EARNINGS:

Balance at beginning of year                               41,972              26,570              14,682
Net income                                                 22,076              15,402              11,888
- ---------------------------------------------------------------------------------------------------------
   Balance at end of year                                  64,048              41,972              26,570
- ---------------------------------------------------------------------------------------------------------
   TOTAL STOCKHOLDER'S EQUITY                           $ 289,493             266,066             182,879
=========================================================================================================
</TABLE>


                 See accompanying notes to financial statements.





                                      F-5
<PAGE>   64
                      CAPITAL MARKETS ASSURANCE CORPORATION

                            STATEMENTS OF CASH FLOWS
                              (DOLLAR IN THOUSANDS)

<TABLE>
<CAPTION>
                                                       Year Ended          Year Ended         Year Ended
                                                December 31, 1996   December 31, 1995  December 31, 1994
- --------------------------------------------------------------------------------------------------------
<S>                                                    <C>                  <C>                 <C>   
CASH FLOWS FROM OPERATING ACTIVITIES:

Net income                                             $  22,076              15,402              11,888
- --------------------------------------------------------------------------------------------------------
ADJUSTMENTS TO RECONCILE NET INCOME TO NET
   CASH PROVIDED (USED) BY OPERATING ACTIVITIES:

   Reserve for losses and loss adjustment
     expenses                                              4,437               1,357               1,429
   Unearned premiums, net                                 22,496              19,862              15,843
   Deferred acquisition costs                            (10,218)            (10,302)             (9,611)
   Premiums receivable                                    (1,601)               (161)             (2,103)
   Accrued investment income                                (671)               (390)               (848)
   Income taxes payable                                    3,911               3,621               2,611
   Net realized capital gains                               (236)             (1,301)                (92)
   Accounts payable and other accrued
     expenses                                              1,020                 472               3,726
   Prepaid reinsurance                                    (5,318)             (7,620)             (5,352)
   Other, net                                             (3,396)                992                 689
- --------------------------------------------------------------------------------------------------------
         Total adjustments                                10,424               6,530               6,292
- --------------------------------------------------------------------------------------------------------
   NET CASH PROVIDED BY OPERATING ACTIVITIES              32,500              21,932              18,180
- --------------------------------------------------------------------------------------------------------
CASH FLOWS FROM INVESTING ACTIVITIES:

   Purchases of investments                             (199,989)           (158,830)            (77,980)
   Proceeds from sales of investments                     57,210              49,354              39,967
   Proceeds from maturities of investments               110,306              28,803              19,665
- --------------------------------------------------------------------------------------------------------
   NET CASH USED IN INVESTING ACTIVITIES                 (32,473)            (80,673)            (18,348)
- --------------------------------------------------------------------------------------------------------
CASH FLOWS FROM FINANCING ACTIVITIES:

   Capital contribution                                       --              59,000                  --
- --------------------------------------------------------------------------------------------------------
   NET CASH PROVIDED BY FINANCING ACTIVITIES                  --              59,000                  --
- --------------------------------------------------------------------------------------------------------
Net increase (decrease) in cash                               27                 259                (168)
Cash balance at beginning of year                            344                  85                 253
- --------------------------------------------------------------------------------------------------------
   CASH BALANCE AT END OF YEAR                         $     371                 344                  85
========================================================================================================
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:

Income taxes paid                                      $   4,525               1,450               1,063
=========================================================================================================
</TABLE>







                See accompanying notes to financial statements.


                                      F-6
<PAGE>   65
                      CAPITAL MARKETS ASSURANCE CORPORATION

                          NOTES TO FINANCIAL STATEMENTS
                           DECEMBER 31, 1996 AND 1995

(1)      BACKGROUND

         Capital Markets Assurance Corporation ("CapMAC" or "the Company") is a
         New York-domiciled monoline stock insurance company which engages only
         in the business of financial guarantee and surety insurance. CapMAC is
         a wholly owned subsidiary of CapMAC Holdings Inc. ("Holdings"). CapMAC
         is licensed in all 50 states in addition to the District of Columbia,
         the commonwealth of Puerto Rico and the territory of Guam. CapMAC
         insures structured asset-backed, corporate, municipal and other
         financial obligations in the U.S. and international capital markets.
         CapMAC also provides financial guarantee reinsurance for structured
         asset-backed, corporate, municipal and other financial obligations
         written by other major insurance companies.

         CapMAC's claims-paying ability is rated "Aaa" by Moody's Investors
         Service, Inc. ("Moody's"), "AAA" by Standard & Poor's Ratings Group
         ("S&P"), "AAA" by Duff & Phelps Credit Rating Co. ("Duff & Phelps"),
         and "AAA" by Nippon Investors Service, Inc., a Japanese rating agency.
         Such ratings reflect only the views of the respective rating agencies,
         are not recommendations to buy, sell or hold securities and are subject
         to revision or withdrawal at any time by such rating agencies.

(2)      SIGNIFICANT ACCOUNTING POLICIES

         Significant accounting policies used in the preparation of the
         accompanying financial statements are as follows:

         (A)      BASIS OF PRESENTATION

                  The accompanying financial statements are prepared on the
                  basis of generally accepted accounting principles ("GAAP").
                  Such accounting principles differ from statutory reporting
                  practices used by insurance companies in reporting to state
                  regulatory authorities.

                  The preparation of financial statements in conformity with
                  generally accepted accounting principles requires management
                  to make estimates and assumptions that affect the reported
                  amounts of assets and liabilities and the disclosure of
                  contingent assets and liabilities at the date of the financial
                  statements and the reported amounts of revenues and expenses
                  during the reporting period. Management believes the most
                  significant estimates relate to deferred acquisition costs,
                  reserve for losses and loss adjustment expenses and
                  disclosures of financial guarantees outstanding. Actual
                  results could differ from those estimates.

         (B)      INVESTMENTS

                  As of December 31, 1996 and 1995, all of the Company's
                  securities have been classified as available-for-sale.
                  Available-for-sale securities are recorded at fair value. Fair
                  value is generally based upon quoted market prices. Unrealized
                  holding gains and losses, net of the related tax effect, on
                  available-for-sale securities are excluded from earnings and
                  are reported as a separate component of stockholder's equity
                  until realized. Transfers of securities between categories are
                  recorded at fair value at the date of transfer. A decline in
                  the fair value of any available-for-sale security below cost
                  that is deemed other than temporary is charged to earnings
                  resulting in the establishment of a new cost basis for the
                  security.

                                      F-7
<PAGE>   66
                      CAPITAL MARKETS ASSURANCE CORPORATION
                          NOTES TO FINANCIAL STATEMENTS

                  Short-term investments are those investments having a maturity
                  of less than one year at purchase date. Short-term investments
                  are carried at amortized cost which approximates fair value.

                  Premiums and discounts are amortized or accreted over the life
                  of the related security as an adjustment to yield using the
                  effective interest method. Dividend and interest income are
                  recognized when earned. Realized gains and losses are included
                  in earnings and are derived using the FIFO (first-in,
                  first-out) method for determining the cost of securities sold.

         (C)      PREMIUM REVENUE RECOGNITION

                  Premiums which are payable monthly to CapMAC are reflected in
                  income when due, net of amounts payable to reinsurers.
                  Premiums which are payable quarterly, semi-annually or
                  annually are reflected in income, net of amounts payable to
                  reinsurers, on an equal monthly basis over the corresponding
                  policy term. Premiums that are collected as a single premium
                  at the inception of the policy and have a term longer than one
                  year are earned, net of amounts payable to reinsurers, by
                  allocating premium to each bond maturity based on the
                  principal amount and earning it straight-line over the term of
                  each bond maturity. For the years ended December 31, 1996 and
                  1995, 91% of net premiums earned were attributable to premiums
                  payable in installments and 9% were attributable to premiums
                  collected on an up-front basis.

         (D)      DEFERRED ACQUISITION COSTS

                  Certain costs incurred by CapMAC, which vary with and are
                  primarily related to the production of new business, are
                  deferred. These costs include direct and indirect expenses
                  related to underwriting, marketing and policy issuance, rating
                  agency fees and premium taxes, net of reinsurance ceding
                  commissions. The deferred acquisition costs are amortized over
                  the period in proportion to the related premium earnings. The
                  actual amount of premium earnings may differ from projections
                  due to various factors such as renewal or early termination of
                  insurance contracts or different run-off patterns of exposure
                  resulting in a corresponding change in the amortization
                  pattern of the deferred acquisition costs.

         (E)      RESERVE FOR LOSSES AND LOSS ADJUSTMENT EXPENSES

                  The reserve for losses and loss adjustment expenses consists
                  of a supplemental loss reserve ("SLR") and a case basis loss
                  reserve. The SLR is established for expected levels of losses
                  resulting from credit failures on currently insured issues and
                  reflects the estimated portion of earned premiums required to
                  cover those losses.

                  A case basis loss reserve is established for insured
                  obligations when, in the judgment of management, a default in
                  the timely payment of debt service is imminent. For defaults
                  considered temporary, a case basis loss reserve is established
                  in an amount equal to the present value of the anticipated
                  defaulted debt service payments over the expected period of
                  default. If the default is judged not to be temporary, the
                  present value of all remaining defaulted debt service payments
                  is recorded as a case basis loss reserve. Anticipated salvage
                  recoveries are considered in establishing case basis loss
                  reserves when such amounts are reasonably estimable. Case
                  basis loss reserves may be allocated from any SLR outstanding
                  at the time the case basis reserves are established.

                                      F-8
<PAGE>   67
                      CAPITAL MARKETS ASSURANCE CORPORATION

                          NOTES TO FINANCIAL STATEMENTS

                  Management believes that the current level of reserves is
                  adequate to cover the ultimate net cost of claims and the
                  related expenses with respect to financial guarantees issued
                  by CapMAC. The establishment of the appropriate level of loss
                  reserves is an inherently uncertain process involving
                  estimates and subjective judgments by management, and
                  therefore there can be no assurance that ultimate losses in
                  CapMAC's insured portfolio will not exceed the current
                  estimate of loss reserves.

         (F)      DEPRECIATION

                  Leasehold improvements, furniture, fixtures and electronic
                  data processing equipment are being amortized or depreciated
                  over the lease term or useful life, whichever is shorter,
                  using the straight-line method.

         (G)      INCOME TAXES

                  Deferred income taxes are provided with respect to temporary
                  differences between the financial statement and tax basis of
                  assets and liabilities using enacted tax rates in effect for
                  the year in which the differences are expected to reverse. The
                  effect on deferred tax assets and liabilities of a change in
                  tax rates is recognized in the period that includes the
                  enactment date.

                                      F-9
<PAGE>   68
                     CAPITAL MARKETS ASSURANCE CORPORATION

                         NOTES TO FINANCIAL STATEMENTS

 (3)     INSURED PORTFOLIO

         At December 31, 1996 and 1995, the principal amount of financial
         obligations insured by CapMAC was $24.5 billion and $16.9 billion,
         respectively, and net of reinsurance (net principal outstanding), was
         $19.7 billion and $12.6 billion, respectively, with a weighted average
         life of 6.4 years and 6.0 years, respectively. CapMAC's insured
         portfolio was broadly diversified by geographic distribution and type
         of insured obligations, with no single insured obligation in excess of
         statutory single risk limits, after giving effect to any reinsurance
         and collateral, which are a function of CapMAC's statutory qualified
         capital (the sum of statutory capital and surplus and mandatory
         contingency reserve). At December 31, 1996 and 1995, the statutory
         qualified capital was approximately $260 million and $240 million,
         respectively.

<TABLE>
<CAPTION>
                                                                        Net Principal Outstanding
                                                                ----------------------------------------
                                                                  December 31, 1996    December 31, 1995
                                                                -------------------    -----------------
         Type of Obligations Insured ($ in millions)             Amount           %      Amount        %
         -----------------------------------------------------------------------------------------------
         <S>                                                    <C>            <C>      <C>         <C> 
         Consumer receivables                                   $10,362        52.8     $ 6,959     55.1
         Trade and other corporate obligations                    8,479        43.1       4,912     38.9
         Municipal/government obligations                           814         4.1         757      6.0
         -----------------------------------------------------------------------------------------------
         TOTAL                                                  $19,655       100.0     $12,628    100.0
         ===============================================================================================
</TABLE>

         At December 31, 1996 and 1995, the principal and interest amount of
         financial obligations insured by CapMAC was $29.8 billion and $20.3
         billion, respectively, and net of reinsurance (net principal and
         interest outstanding) was $23.3 billion and $15.1 billion,
         respectively. At December 31, 1996, approximately 93% of CapMAC's
         insured portfolio was comprised of structured asset-backed
         transactions. Under these structures, a pool of assets covering at
         least 100% of the principal amount guaranteed under its insurance
         contract is sold or pledged to a special purpose bankruptcy remote
         entity. CapMAC's primary risk from such insurance contracts is the
         impairment of cash flows due to delinquency or loss on the underlying
         assets. CapMAC, therefore, evaluates all the factors affecting past and
         future asset performance by studying historical data on losses,
         delinquencies and recoveries of the underlying assets. Each transaction
         is reviewed to ensure that an appropriate legal structure is used to
         protect against the bankruptcy risk of the originator of the assets.
         Along with the legal structure, an additional level of first loss
         protection is also created to protect against losses due to credit or
         dilution. This first level of loss protection is usually available from
         reserve funds, excess cash flows, overcollateralization, or recourse to
         a third party. The level of first loss protection depends upon the
         historical losses and dilution of the underlying assets, but is
         typically several times the normal historical loss experience for the
         underlying type of assets.

         During 1995, the Company sold without recourse its interest in
         potential cash flows from transactions included in its insured
         portfolio and recognized $2,200,000 of income which has been included
         in other income in the accompanying financial statements.

         The following entities each accounted for, through referrals and
         otherwise, 10% or more of total revenues for each of the periods
         presented:

<TABLE>
<CAPTION>
                                                   Year Ended          Year Ended           Year Ended
                                            December 31, 1996   December 31, 1995    December 31, 1994
                                            -----------------   -----------------    -----------------
                                                         % of                % of                 % of
                                                     Revenues            Revenues             Revenues
         ---------------------------------------------------------------------------------------------
         <S>                                         <C>                 <C>                  <C> 
         Citicorp                                        14.5                15.2                 16.3
         =============================================================================================
</TABLE>



                                      F-10
<PAGE>   69
                      CAPITAL MARKETS ASSURANCE CORPORATION

                          NOTES TO FINANCIAL STATEMENTS

 (4)     INVESTMENTS

         The amortized cost, gross unrealized gains, gross unrealized losses and
         estimated fair value for available-for-sale securities by major
         security type at December 31, 1996 and 1995 were as follows ($ in
         thousands):

<TABLE>
<CAPTION>

         December 31, 1996
         -------------------------------------------------------------------------------------------------
                                                                       Gross          Gross      Estimated
                                                    Amortized     Unrealized     Unrealized           Fair
         Securities Available-for-sale                   Cost          Gains         Losses          Value
         -------------------------------------------------------------------------------------------------
         <S>                                         <C>               <C>            <C>        <C>
         U.S. Treasury obligations                   $  4,059             10             --          4,069
         Mortgage-backed securities of
           U.S. government instrumentalities
           and agencies                               109,436            265          1,160        108,541
         Obligations of states, municipalities
           and political subdivisions                 177,811          4,602            555        181,858
         Corporate and asset-backed securities         20,365             23            153         20,235
         -------------------------------------------------------------------------------------------------
            TOTAL                                    $311,671          4,900          1,868        314,703
         =================================================================================================


         December 31, 1995
         -------------------------------------------------------------------------------------------------
                                                                       Gross          Gross      Estimated
                                                    Amortized     Unrealized     Unrealized           Fair
         Securities Available-for-sale                   Cost          Gains         Losses          Value
         -------------------------------------------------------------------------------------------------
         <S>                                         <C>               <C>            <C>        <C>
         U.S. Treasury obligations                   $  4,153             55             --          4,208
         Mortgage-backed securities of
           U.S. government instrumentalities
           and agencies                               100,628            313             79        100,862
         Obligations of states, municipalities
           and political subdivisions                 166,010          4,809             82        170,737
         Corporate and asset-backed securities          8,506             45              6          8,545
         -------------------------------------------------------------------------------------------------
            TOTAL                                    $279,297          5,222            167        284,352
         =================================================================================================
</TABLE>


                                      F-11
<PAGE>   70
                     CAPITAL MARKETS ASSURANCE CORPORATION

                         NOTES TO FINANCIAL STATEMENTS

         The amortized cost and estimated fair value of investments in debt
         securities at December 31, 1996 by contractual maturity are shown below
         ($ in thousands):

<TABLE>
<CAPTION>
         December 31, 1996
         --------------------------------------------------------------------
                                                     Amortized      Estimated
         Securities Available-for-sale                    Cost     Fair Value
         --------------------------------------------------------------------
         <S>                                          <C>          <C>   
         Due in one year or less                      $ 11,627         11,644
         Due after one year through five years          31,821         32,815
         Due after five years through ten years         76,450         78,200
         Due after ten years                            82,337         83,503
         --------------------------------------------------------------------
              Sub-total                                202,235        206,162
         Mortgage-backed securities                    109,436        108,541
         --------------------------------------------------------------------
                  TOTAL                               $311,671        314,703
         ====================================================================
</TABLE>

         Actual maturities may differ from contractual maturities because
         borrowers may call or prepay obligations with or without call or
         prepayment penalties.

         Proceeds from sales of investment securities were approximately $57.2
         million, $49.3 million and $39.9 million in 1996, 1995 and 1994,
         respectively. Gross realized capital gains of $772,000, $1,320,000 and
         $714,000, and gross realized capital losses of $536,000, $19,000 and
         $622,000 were realized on those sales for the years ended December 31,
         1996, 1995 and 1994, respectively.

         Investments include bonds having a fair value of approximately
         $3,884,000 and $3,985,000 which are on deposit at December 31, 1996 and
         1995, respectively, with state regulators as required by law.

         Investment income is comprised of interest and dividends, net of
         related expenses, and is applicable to the following sources:

<TABLE>
<CAPTION>
                                      Year Ended           Year Ended           Year Ended
         $ in thousands        December 31, 1996    December 31, 1995    December 31, 1994
         ---------------------------------------------------------------------------------
         <S>                            <C>                  <C>                <C>  
         Bonds                          $ 15,726               11,105               9,193
         Short-term investments            1,534                1,245                 484
         Mutual funds                         --                 (162)                579
         Investment expenses                (268)                (235)               (184)
         --------------------------------------------------------------------------------
             TOTAL                      $ 16,992               11,953              10,072
         ================================================================================
</TABLE>



                                      F-12
<PAGE>   71
                     CAPITAL MARKETS ASSURANCE CORPORATION

                         NOTES TO FINANCIAL STATEMENTS

         The change in unrealized appreciation (depreciation) on
         available-for-sale securities is included as a separate component of
         stockholder's equity as shown below:

<TABLE>
<CAPTION>
                                                                    Year  Ended           Year Ended
         $ in thousands                                       December 31, 1996    December 31, 1995
         -------------------------------------------------------------------------------------------
         <S>                                                          <C>                  <C>    
         Balance at beginning of year                                   $ 3,286               (5,499)
         Change in unrealized (depreciation) appreciation                (2,024)              13,386
         Income tax effect                                                  708               (4,601)
         Net change                                                      (1,316)               8,785
         -------------------------------------------------------------------------------------------
            BALANCE AT END OF YEAR                                      $ 1,970                3,286
         ===========================================================================================
</TABLE>

         No single issuer, except for investments in U.S. Treasury and U.S.
         government agency securities, exceeds 2% of stockholder's equity as of
         December 31, 1996 and 1995, respectively.

 (5)     DEFERRED ACQUISITION COSTS

         The following table reflects acquisition costs deferred by CapMAC and
         amortized in proportion to the related premium earnings:

<TABLE>
<CAPTION>
                                                Year Ended         Year Ended         Year Ended
         $ in thousands                  December 31, 1996  December 31, 1995  December 31, 1994
         ---------------------------------------------------------------------------------------
         <S>                                      <C>                 <C>               <C>   
         Balance at beginning of year             $ 35,162             24,860             15,249
         Additions                                  18,042             17,505             14,140
         Amortization (policy
           acquisition costs)                       (7,824)            (7,203)            (4,529)
         ---------------------------------------------------------------------------------------
           BALANCE AT END OF YEAR                 $ 45,380             35,162             24,860
         =======================================================================================
</TABLE>

 (6)     EMPLOYEE BENEFITS

         CapMAC has a service agreement with CapMAC Financial Services, Inc.
         ("CFS"). Under the service agreement, CFS has agreed to provide various
         services, including underwriting, reinsurance, marketing, data
         processing and other services to CapMAC in connection with the
         operation of CapMAC's insurance business. CapMAC pays CFS a fee for
         providing such services, but not in excess of CFS's cost for such
         services. CFS incurred, on behalf of CapMAC, total compensation
         expenses, excluding bonuses, of $13,374,000, $13,484,000 and
         $11,081,000 in 1996, 1995 and 1994, respectively.

         The Company, through CFS, maintains an incentive compensation plan for
         its employees. The plan is an annual discretionary bonus award. For the
         years ended December 31, 1996, 1995 and 1994, the Company had provided
         approximately $8,810,000, $7,804,000 and $5,253,000, respectively, for
         the plan. CFS also provides health and welfare benefits to
         substantially all of its employees. The Company incurred $551,943,
         $598,530, and $562,508 of expense for the years ended December 31,
         1996, 1995 and 1994, respectively, for such plan. The Company also has
         a defined contribution retirement plan which allows participants to
         make voluntary contributions by salary reduction pursuant to section
         401 (k) of the Internal Revenue Code. The Company provides for the
         administrative cost for the 401 (k) plan.

                                      F-13
<PAGE>   72
                      CAPITAL MARKETS ASSURANCE CORPORATION

                          NOTES TO FINANCIAL STATEMENTS

         On June 25, 1992, certain officers of CapMAC were granted 182,633
         restricted stock units ("RSU") at $13.33 a share in respect of certain
         deferred compensation. On December 7, 1995, the RSU's were converted to
         cash in the amount of approximately $3.7 million, and such officers
         agreed to defer receipt of such cash amount in exchange for receiving
         the same number of new shares of restricted stock of Holdings as the
         number of RSU's such officers previously held. During 1995 and 1994,
         the expense was $1.3 million and $0.1 million, respectively. During
         1996, Holdings assumed the liability of $3.7 million less the related
         deferred tax asset of $1.1 million as capital contribution. The cash
         amount is held by Holdings and invested in accordance with certain
         guidelines. Such amount, including the investment earnings thereon,
         will be paid to each officer upon the occurrence of certain events but
         no later than December 2000.

 (7)     EMPLOYEE STOCK OWNERSHIP PLAN

         Holdings maintains an Employee Stock Ownership Plan ("ESOP") to provide
         its employees the opportunity to obtain beneficial interests in the
         stock of Holdings through a trust (the "ESOP Trust"). Compensation
         expense related to the ESOP and allocated to CapMAC was approximately
         $2,764,000, $2,087,000 and $2,086,000 for the years ended December 31,
         1996, 1995 and 1994, respectively.

                                      F-14
<PAGE>   73
                     CAPITAL MARKETS ASSURANCE CORPORATION

                         NOTES TO FINANCIAL STATEMENTS

 (8)     RESERVE FOR LOSSES AND LOSS ADJUSTMENT EXPENSES

         The reserve for losses and loss adjustment expenses consists of a case
         basis loss reserve and the SLR.

         In 1995, CapMAC incurred its first claim on a financial guarantee
         policy. Based on its current estimate, the Company expects the
         aggregate amount of claims and related expenses not to exceed $2.7
         million, although no assurance can be given that such claims and
         related expenses will not exceed that amount. Such loss amount was
         covered through a recovery under a quota share reinsurance agreement of
         $0.2 million and a reduction in the SLR of $2.5 million. The portion of
         such claims and expenses not covered under the quota share agreement is
         being funded through payments to CapMAC from the Lureco Trust Account
         (see note 12).

         The following is a summary of the activity in the case basis loss
         reserve account and the components of the reserve for losses and loss
         adjustment expenses ($ in thousands):

<TABLE>
<CAPTION>
                                                                                   1996        1995         1994
         -------------------------------------------------------------------------------------------------------
         <S>                                                                    <C>          <C>          <C>    
         CASE BASIS LOSS RESERVE:

         Net balance at January 1                                               $   620          --           --
         -------------------------------------------------------------------------------------------------------
         INCURRED RELATED TO:

            Current year                                                             --       2,473           --
            Prior years                                                              --          --           --
         -------------------------------------------------------------------------------------------------------
         Total incurred                                                              --       2,473           --
         -------------------------------------------------------------------------------------------------------
         PAID RELATED TO:

            Current year                                                             --       1,853           --
            Prior years                                                             309          --           --
         -------------------------------------------------------------------------------------------------------
         Total paid                                                                 309       1,853           --
         Net balance at December 31                                                 311         620           --
         Reinsurance recoverable                                                     --          69           --
         -------------------------------------------------------------------------------------------------------
         GROSS BALANCE AT DECEMBER 31                                               311         689           --
         -------------------------------------------------------------------------------------------------------
         SUPPLEMENTAL LOSS RESERVE

         Balance at January 1                                                     5,859       5,191        3,762
         -------------------------------------------------------------------------------------------------------
            Additions to supplemental loss reserve                                4,815       3,141        1,429
            Allocated to case basis reserve                                          --      (2,473)          --
         -------------------------------------------------------------------------------------------------------
         BALANCE AT DECEMBER 31                                                  10,674       5,859        5,191
         -------------------------------------------------------------------------------------------------------
         TOTAL RESERVE FOR LOSSES AND LOSS ADJUSTMENT EXPENSES                  $10,985       6,548        5,191
         =======================================================================================================
</TABLE>



                                      F-15
<PAGE>   74
                      CAPITAL MARKETS ASSURANCE CORPORATION

                          NOTES TO FINANCIAL STATEMENTS

 (9)     INCOME TAXES

         Pursuant to a tax sharing agreement with Holdings, the Company is
         included in Holdings' consolidated U.S. Federal income tax return. The
         Company's annual Federal income tax liability is determined by
         computing its pro rata share of the consolidated group Federal income
         tax liability.

         Total income tax expense differed from the amount computed by applying
         the U.S. Federal income tax rate of 35% in 1996 and 1995 and 34% in
         1994:

<TABLE>
<CAPTION>
                                                         Year Ended                Year Ended                Year Ended
                                                  December 31, 1996         December 31, 1995         December 31, 1994
         --------------------------------------------------------------------------------------------------------------
         $ in thousands                         Amount            %        Amount           %       Amount            %
         --------------------------------------------------------------------------------------------------------------
         <S>                                  <C>              <C>      <C>              <C>      <C>              <C> 
         Expected tax expense computed
            at the statutory rate              $10,738         35.0      $ 7,216         35.0      $ 5,303         34.0
         Increase (decrease) in tax
            resulting from:
            Tax-exempt interest                 (2,916)        (9.5)      (2,335)       (11.3)      (1,646)       (10.6)
            Other, net                             781          2.5          334          1.6           51          0.4
         --------------------------------------------------------------------------------------------------------------
                TOTAL INCOME TAX EXPENSE       $ 8,603         28.0      $ 5,215         25.3      $ 3,708         23.8
         ==============================================================================================================
</TABLE>

         The tax effects of temporary differences that give rise to significant
         portions of the deferred Federal income tax liability are as follows:

<TABLE>
<CAPTION>
         $ in thousands                           December 31, 1996  December 31, 1995
         -----------------------------------------------------------------------------
         <S>                                              <C>               <C>   
         DEFERRED TAX ASSETS:

         Deferred compensation                              $   200             1,901
         Losses and loss adjustment expenses                  1,527             1,002
         Unearned premiums                                      866               852
         Other, net                                              96                98
         ----------------------------------------------------------------------------
           Total gross deferred tax assets                    2,689             3,853
         ----------------------------------------------------------------------------
         DEFERRED TAX LIABILITIES:

         Deferred acquisition costs                          15,883            12,307
         Unrealized capital gains on investments              1,061             1,769
         Other, net                                             884             1,080
         ----------------------------------------------------------------------------
            Total gross deferred tax liabilities             17,828            15,156
         ----------------------------------------------------------------------------
            NET DEFERRED TAX LIABILITY                      $15,139            11,303
         ============================================================================
</TABLE>

         A valuation allowance is provided when it is more likely than not that
         some portion of the deferred tax assets will not be realized.
         Management believes that the deferred tax assets will be fully realized
         in the future.

                                      F-16
<PAGE>   75
                     CAPITAL MARKETS ASSURANCE CORPORATION

                         NOTES TO FINANCIAL STATEMENTS

(10)     INSURANCE REGULATORY RESTRICTIONS

         CapMAC is subject to insurance regulatory requirements of the State of
         New York and other states in which it is licensed to conduct business.
         Generally, New York insurance laws require that dividends be paid from
         earned surplus and restrict the amount of dividends in any year that
         may be paid without obtaining approval for such dividends from the
         Superintendent of Insurance to the lower of (i) net investment income
         as defined or (ii) 10% of statutory surplus as of December 31 of the
         preceding year. No dividends were paid by CapMAC to Holdings during the
         years ended December 31, 1996, 1995 and 1994. No dividends could be
         paid during these periods because CapMAC had negative earned surplus.
         Statutory surplus at December 31, 1996 and 1995 was approximately
         $193,726,000 and $195,018,000, respectively. Statutory surplus differs
         from stockholder's equity determined under GAAP principally due to the
         mandatory contingency reserve required for statutory accounting
         purposes and differences in accounting for investments, deferred
         acquisition costs, SLR and deferred taxes provided under GAAP.
         Statutory net income was $18,737,000, $9,000,000 and $4,543,000 for the
         years ended December 31, 1996, 1995 and 1994, respectively. Statutory
         net income differs from net income determined under GAAP principally
         due to deferred acquisition costs, SLR and deferred income taxes.

(11)     COMMITMENTS AND CONTINGENCIES

         The Company's lease agreement for the space occupied in New York
         expires on November 20, 2008. CapMAC has a lease agreement for its
         London office, which expires on October 1, 2002. As of December 31,
         1996, future minimum payments under the lease agreements are as
         follows:

<TABLE>
<CAPTION>

          $ in thousands                                        Payment
          -------------------------------------------------------------
          <S>                                                   <C>       
          1997                                                  $ 2,647
          1998                                                    2,715
          1999                                                    3,077
          2000                                                    3,152
          2001 and thereafter                                    28,660
          -------------------------------------------------------------
          TOTAL                                                 $40,251
          =============================================================
</TABLE>

         Rent expense, commercial rent taxes and electricity for the years ended
         December 31, 1996, 1995 and 1994 amounted to $1,618,000, $1,939,000 and
         $2,243,000, respectively.

         CapMAC has available a $150,000,000 standby corporate liquidity
         facility (the "Liquidity Facility") scheduled to terminate in September
         1999. The Liquidity Facility is provided by a consortium of banks,
         headed by Bank of Montreal, as agent, which is rated "A-1+" and "P-1"
         by S&P and Moody's, respectively. Under the Liquidity Facility, CapMAC
         will be able, subject to satisfying certain conditions, to borrow funds
         from time to time in order to enable it to fund any claim payments or
         payments made in settlement or mitigation of claim payments under its
         insurance contracts. There have been no draws under the Liquidity
         Facility.

         CapMAC has agreed to make an investment of 50 million French Francs
         (approximately $10 million U.S. dollars) in CapMAC Assurance, S.A., an
         insurance subsidiary to be established in Paris, France. This
         investment is anticipated to be made in 1997.

                                      F-17
<PAGE>   76
                     CAPITAL MARKETS ASSURANCE CORPORATION

                         NOTES TO FINANCIAL STATEMENTS

(12)     REINSURANCE

         In the ordinary course of business, CapMAC cedes exposure under various
         treaty and facultative reinsurance contracts, both on a pro rata and
         excess of loss basis, primarily designed to minimize losses from large
         risks and protect the capital and surplus of CapMAC.

         The effect of reinsurance on premiums written and earned was as
         follows:
<TABLE>
<CAPTION>
                                                      Years Ended December 31
                                ---------------------------------------------------------------------
                                       1996                    1995                      1994
                                -------------------    --------------------     ---------------------
         $ in thousands         Written     Earned      Written      Earned      Written       Earned
         --------------------------------------------------------------------------------------------
         <S>                    <C>         <C>          <C>         <C>          <C>          <C>   
         Direct                $ 71,752     48,835       56,541      36,853       43,598       28,561
         Assumed                  1,086      1,508          935         761        1,064          258
         Ceded                  (15,104)    (9,786)     (15,992)     (8,372)     (11,069)      (5,716)
         --------------------------------------------------------------------------------------------
         NET PREMIUMS          $ 57,734     40,557       41,484      29,242       33,593       23,103
         ============================================================================================
</TABLE>

         The reinsurance of risk does not relieve the ceding insurer of its
         original liability to its policyholders. A contingent liability exists
         with respect to the aforementioned reinsurance arrangements, which may
         become a liability of CapMAC in the event the reinsurers are unable to
         meet obligations assumed by them under the reinsurance contracts. At
         December 31, 1996 and 1995, CapMAC had ceded loss reserves of $0 and
         $69,000, respectively, and had ceded unearned premiums of $18,489,000
         and $13,171,000, respectively.

         In 1994, CapMAC entered into a reinsurance agreement (the "Lureco
         Treaty") with Luxembourg European Reinsurance LURECO S.A. ("Lureco"), a
         European-based reinsurer. The agreement is renewable annually at the
         Company's option, subject to satisfying certain conditions. The
         agreement reinsured and indemnified the Company for any loss incurred
         by CapMAC during the agreement period up to the limits of the
         agreement. The Lureco Treaty provides that the annual reinsurance
         premium payable by CapMAC to Lureco, after deduction of the reinsurer's
         fee payable to Lureco, be deposited in a trust account (the "Lureco
         Trust Account") to be applied by CapMAC, at its option, to offset
         losses and loss expenses incurred by CapMAC in connection with incurred
         claims. Amounts on deposit in the Lureco Trust Account which have not
         been applied against claims are contractually due to CapMAC at the
         termination of the treaty.

         The premium deposit amounts in the Lureco Trust Account have been
         reflected as assets by CapMAC during the term of the agreement.
         Premiums in excess of the deposit amounts have been recorded as ceded
         premiums in the statements of income. For the 1996 policy year, the
         agreement provides $7 million of loss coverage in excess of the premium
         deposit amount of $5 million retained in the Lureco Trust Account.
         Additional coverage is provided for losses incurred in excess of 200%
         of the net premiums earned up to $4 million for any one agreement year.
         In September 1995, a claim of approximately $2.5 million on an
         insurance policy was applied against the Lureco Trust Account.

                                      F-18
<PAGE>   77
                     CAPITAL MARKETS ASSURANCE CORPORATION

                         NOTES TO FINANCIAL STATEMENTS

         In addition to its capital (including statutory contingency reserves),
         CapMAC has other reinsurance available to pay claims under its
         insurance contracts. Effective November 30, 1995, CapMAC entered into a
         Stop-loss Reinsurance Agreement with Mitsui Marine and Fire Insurance
         Co. (the "Mitsui Stop-loss Agreement"). Under the Mitsui Stop-loss
         Agreement, Mitsui Marine and Fire Insurance Co. ("Mitsui") will be
         required to pay any losses in excess of $100 million in the aggregate
         incurred by CapMAC during the term of the Mitsui Stop-loss Agreement on
         the insurance policies in effect on December 1, 1995 and written during
         the one-year period thereafter, up to an aggregate limit payable under
         the Mitsui Stop-loss Agreement of $50 million. The Mitsui Stop-loss
         Agreement has a term of seven years and is subject to early termination
         by CapMAC in certain circumstances. Effective January 1, 1997 the
         stop-loss reinsurance coverage increased to $75 million in excess of
         incurred losses of $150 million increasing annually based on increases
         in CapMAC's statutory qualified capital. The new stop-loss reinsurance
         is provided by Mitsui, AXA Re Finance S.A. ("AXA Re") and Munchener
         Ruckversicherungs-Gesellschaft ("Munich Re").

         On November 30, 1995, CapMAC canceled the quota share reinsurance
         agreement with Winterthur Swiss Insurance Company ("Winterthur")
         pursuant to which Winterthur had the right to reinsure on a quota share
         basis 10% of each policy written by CapMAC. As a result, CapMAC
         reassumed approximately $1.4 billion of principal insured by Winterthur
         on January 1, 1996. In connection with the commutation, Winterthur
         returned $2.0 million of unearned premiums, net of ceding commission
         and Federal excise tax.

(13)     DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS

         The following table presents the carrying amounts and estimated fair
         values of the Company's financial instruments at December 31, 1996 and
         1995. The fair value amounts were determined by the Company using
         independent market information when available, and appropriate
         valuation methodologies when market information was not available. Such
         valuation methodologies require significant judgment and are not
         necessarily indicative of the amount the Company could recognize in a
         current market exchange.

<TABLE>
<CAPTION>
                                                            December 31, 1996       December 31, 1995
                                                        ---------------------    --------------------
                                                        Carrying    Estimated    Carrying   Estimated
         $ in thousands                                   Amount   Fair Value      Amount  Fair Value
         --------------------------------------------------------------------------------------------
         <S>                                            <C>           <C>         <C>         <C>    
         FINANCIAL ASSETS:
         Available-for-sale securities                  $314,703      314,703     284,352     284,352
         --------------------------------------------------------------------------------------------
         OFF-BALANCE-SHEET INSTRUMENTS:
         Financial guarantees outstanding               $     --      219,989          --     147,840
            Less: ceding commission                           --       65,997          --      44,352
         --------------------------------------------------------------------------------------------
         Net financial guarantees outstanding           $     --      153,992                 103,488
         ============================================================================================
</TABLE>



                                      F-19
<PAGE>   78
                     CAPITAL MARKETS ASSURANCE CORPORATION

                         NOTES TO FINANCIAL STATEMENTS

         The following methods and assumptions were used to estimate the fair
         value of each class of financial instruments summarized above:

         AVAILABLE-FOR-SALE SECURITIES

         The fair values of fixed maturities are based upon quoted market
         prices. The fair value of short-term investments approximates amortized
         cost.

         FINANCIAL GUARANTEES OUTSTANDING

         The fair value of financial guarantees outstanding consists of (1) the
         current unearned premium reserve, net of prepaid reinsurance and (2)
         the fair value of installment revenue which is derived by calculating
         the present value of the estimated future cash inflow to CapMAC of
         policies in force having installment premiums, net of amounts payable
         to reinsurers, at a discount rate of 7% at December 31, 1996 and 1995.
         The amount calculated is assumed to be equivalent to the consideration
         that would be paid by CapMAC under market conditions prevailing at the
         reporting dates to transfer CapMAC's financial guarantee business to a
         third party under reinsurance and other agreements. Ceding commission
         represents the expected amount that would be paid to CapMAC to
         compensate CapMAC for originating and servicing the insurance
         contracts. In constructing estimated future cash inflows, management
         makes assumptions regarding prepayments for amortizing asset-backed
         securities which are consistent with relevant historical experience.
         For revolving programs, assumptions are made regarding program
         utilization based on discussions with program users. The amount of
         future installment revenue actually realized by the Company could be
         reduced in the future due to factors such as early termination of
         insurance contracts, accelerated prepayments of underlying obligations
         or lower than anticipated utilization of insured structured programs,
         such as commercial paper conduits. Although increases in future
         installment revenue earnings due to renewals of existing insurance
         contracts historically have been greater than reductions in future
         installment revenue due to factors such as those described above, there
         can be no assurance that future circumstances might not cause a
         material net reduction in the future installment revenue.

(14)     CAPITALIZATION

         In 1995, $59.0 million of the proceeds received by Holdings from the
         sale of shares in connection with an initial public offering and
         private placements were contributed to CapMAC.

                                      F-20
<PAGE>   79
              CAPITAL MARKETS ASSURANCE CORPORATION AND SUBSIDIARY

                        CONSOLIDATED FINANCIAL STATEMENTS

                               SEPTEMBER 30, 1997

                                   (UNAUDITED)


                                      F-21


<PAGE>   80
              CAPITAL MARKETS ASSURANCE CORPORATION AND SUBSIDIARY
                           CONSOLIDATED BALANCE SHEETS
                             (DOLLARS IN THOUSANDS)

                                     ASSETS
<TABLE>
<CAPTION>

                                                                 September 30, 1997  December 31,1996
                                                                     (Unaudited)
- -----------------------------------------------------------------------------------------------------
<S>                                                              <C>                 <C>    
INVESTMENTS:
Bonds at fair value (amortized cost $323,043 at September
30, 1997 and $294,861 at December 31, 1996)                            $  328,035             297,893
Short-term investments (at amortized cost which
approximates fair value)                                                   21,119              16,810
- -----------------------------------------------------------------------------------------------------
   Total investments                                                      349,154             314,703
- -----------------------------------------------------------------------------------------------------
Cash                                                                          999                 371
Accrued investment income                                                   3,998               3,807
Deferred acquisition costs                                                 51,137              45,380
Premiums receivable                                                         7,132               5,141
Prepaid reinsurance                                                        23,348              18,489
Other assets                                                                5,666               6,424
- -----------------------------------------------------------------------------------------------------
   TOTAL ASSETS                                                        $  441,434             394,315
=====================================================================================================
                      LIABILITIES AND STOCKHOLDER'S EQUITY
                                                                
LIABILITIES:
Unearned premiums                                                      $   76,023              68,262
Reserve for losses and loss adjustment expenses                            15,389              10,985
Ceded reinsurance                                                           5,653               1,738
Accounts payable and other accrued expenses                                14,270               8,019
Current income taxes                                                          626                 679
Deferred income taxes                                                      17,383              15,139
- -----------------------------------------------------------------------------------------------------
   Total liabilities                                                      129,344             104,822
- -----------------------------------------------------------------------------------------------------
Stockholder's Equity:
Common stock - $1.00 par value per share; 15,000,000 shares 
are authorized, issued and outstanding at September 30, 1997 
and December 31, 1996                                                      15,000              15,000
Additional paid-in capital                                                208,475             208,475
Unrealized appreciation on investments, net of tax                          3,251               1,970
Retained earnings                                                          85,440              64,048
Cumulative translation adjustment, net of tax                                 (76)                  -
- -----------------------------------------------------------------------------------------------------
   TOTAL STOCKHOLDER'S EQUITY                                             312,090             289,493
- -----------------------------------------------------------------------------------------------------
   TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY                          $  441,434             394,315
=====================================================================================================
</TABLE>


          See accompanying notes to consolidated financial statements.


                                      F-22


<PAGE>   81
              CAPITAL MARKETS ASSURANCE CORPORATION AND SUBSIDIARY
                        CONSOLIDATED STATEMENTS OF INCOME
                                   (UNAUDITED)
                             (DOLLARS IN THOUSANDS)


<TABLE>
<CAPTION>
                                                Three Months Ended       Nine Months Ended
                                                   September 30            September 30 
                                                 1997       1996         1997         1996
<S>                                          <C>            <C>        <C>           <C>    
REVENUES:
Direct premiums written                      $  22,345      17,206      57,525        49,983
Assumed premiums written                           225           8       1,141         1,032
Ceded premiums written                          (7,428)     (4,129)    (18,049)      (11,142)
- -----------------------------------------------------------------------------------------------
   Net premiums written                         15,142      13,085      40,617        39,873
Increase in unearned premiums                   (1,663)     (3,042)     (2,903)      (11,014)
- -----------------------------------------------------------------------------------------------
   Net premiums earned                          13,479      10,043      37,714        28,859
Net investment income                            4,958       4,307      14,344        12,296
Net realized capital gains (loss)                    -         (57)      2,549           111
Other income                                        51          25         139           104
- -----------------------------------------------------------------------------------------------
   Total revenues                               18,488      14,318      54,746        41,370
- -----------------------------------------------------------------------------------------------

EXPENSES:
Losses and loss adjustment expenses              1,528       1,248       4,404         3,432
Underwriting and operating expenses              4,430       3,780      13,309        11,142
Policy acquisition costs                         2,372       2,126       7,425         6,249
- -----------------------------------------------------------------------------------------------
   Total expenses                                8,330       7,154      25,138        20,823
- -----------------------------------------------------------------------------------------------
   Income before income taxes                   10,158       7,164      29,608        20,547
- -----------------------------------------------------------------------------------------------

INCOME TAXES:
Current income tax                               2,502       1,027       6,652         3,008
Deferred income tax                                172         718       1,564         2,689
- -----------------------------------------------------------------------------------------------
   Total income taxes                            2,674       1,745       8,216         5,697
- -----------------------------------------------------------------------------------------------

   NET INCOME                                $   7,484       5,419      21,392        14,850
===============================================================================================
 </TABLE>


          See accompanying notes to consolidated financial statements.


                                      F-23


<PAGE>   82
              CAPITAL MARKETS ASSURANCE CORPORATION AND SUBSIDIARY
                 CONSOLIDATED STATEMENT OF STOCKHOLDER'S EQUITY
                                   (UNAUDITED)
                             (DOLLARS IN THOUSANDS)



<TABLE>
<CAPTION>
                                                               Nine Months Ended
                                                              September 30, 1997
<S>                                                           <C>    

COMMON STOCK:
Balance at beginning of period                                        $  15,000
- --------------------------------------------------------------------------------
   Balance at end of period                                              15,000
- --------------------------------------------------------------------------------

ADDITIONAL PAID-IN CAPITAL:
Balance at beginning of period                                          208,475
- --------------------------------------------------------------------------------
   Balance at end of period                                             208,475
- --------------------------------------------------------------------------------

UNREALIZED APPRECIATION ON INVESTMENTS, NET OF TAX:
Balance at beginning of period                                            1,970
Unrealized appreciation on investments                                    1,281
- --------------------------------------------------------------------------------
   Balance at end of period                                               3,251
- --------------------------------------------------------------------------------

RETAINED EARNINGS:
Balance at beginning of period                                           64,048
Net income                                                               21,392
- --------------------------------------------------------------------------------
   Balance at end of period                                              85,440
- --------------------------------------------------------------------------------

CUMULATIVE TRANSLATION ADJUSTMENT, NET OF TAX:
Balance at beginning of period                                                -
Translation adjustment                                                      (76)
- --------------------------------------------------------------------------------
   Balance at end of period                                                 (76)
- --------------------------------------------------------------------------------

   TOTAL STOCKHOLDER'S EQUITY                                         $ 312,090
================================================================================
</TABLE>


          See accompanying notes to consolidated financial statements.


                                      F-24


<PAGE>   83
              CAPITAL MARKETS ASSURANCE CORPORATION AND SUBSIDIARY
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                   (UNAUDITED)
                             (DOLLARS IN THOUSANDS)


<TABLE>
<CAPTION>
                                                    Nine Months Ended    Nine Months Ended
                                                   September 30, 1997   September 30, 1996
- -------------------------------------------------------------------------------------------
<S>                                                <C>                  <C>    
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income                                               $   21,392                14,850
- -------------------------------------------------------------------------------------------
ADJUSTMENTS TO RECONCILE NET INCOME TO NET
CASH PROVIDED (USED) BY OPERATING ACTIVITIES:
   Reserve for losses and loss adjustment expenses            4,404                 3,054
   Unearned premiums, net                                     7,761                15,643
   Deferred acquisition costs                                (5,757)               (7,188)
   Premiums receivable                                       (1,991)                 (528)
   Accrued investment income                                   (191)                 (468)
   Income taxes payable                                       1,511                 2,341
   Net realized capital gains                                (2,549)                 (111)
   Accounts payable and other accrued expenses                6,251                 5,445
   Prepaid reinsurance                                       (4,859)               (4,630)
   Other, net                                                 5,089                  (381)
- -------------------------------------------------------------------------------------------
         Total adjustments                                    9,669                13,177
- -------------------------------------------------------------------------------------------
    NET CASH PROVIDED BY OPERATING ACTIVITIES                31,061                28,027
- -------------------------------------------------------------------------------------------
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of investments                                   (137,369)             (154,308)
Proceeds from sales of investments                           74,768                35,388
Proceeds from maturities of investments                      32,168                91,063
- -------------------------------------------------------------------------------------------
   NET CASH USED IN INVESTING ACTIVITIES                    (30,433)              (27,857)
- -------------------------------------------------------------------------------------------
Net increase in cash                                            628                   170
Cash balance at beginning of period                             371                   344
- -------------------------------------------------------------------------------------------
   CASH BALANCE AT END OF PERIOD                         $      999                   514
===========================================================================================
SUPPLEMENTAL DISCLOSURES OF CASH FLOW
INFORMATION:
Income taxes paid                                        $    6,550                 3,225
Tax and loss bonds purchased                             $      155                   131
===========================================================================================
</TABLE>


          See accompanying notes to consolidated financial statements.


                                      F-25


<PAGE>   84
              CAPITAL MARKETS ASSURANCE CORPORATION AND SUBSIDIARY
              NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS
                               SEPTEMBER 30, 1997


1.       BACKGROUND
         Capital Markets Assurance Corporation ("CapMAC") is a New
         York-domiciled monoline stock insurance company which engages only in
         the business of financial guaranty and surety insurance. CapMAC is a
         wholly owned subsidiary of CapMAC Holdings Inc. ("Holdings"). In early
         1997, CapMAC made an investment of 50 million French francs
         (approximately 10 million U.S. dollars) in CapMAC Assurance, S.A., an
         insurance subsidiary to be established in Paris, France. CapMAC
         Assurance, S.A., is licensed to write financial guarantee insurance in
         the European Union member states.

         CapMAC is licensed in all 50 states in addition to the District of
         Columbia, the Commonwealth of Puerto Rico and the territory of Guam.
         CapMAC insures structured asset-backed, corporate, municipal and other
         financial obligations in the U.S. and international capital markets.
         CapMAC also provides financial guaranty reinsurance for structured
         asset-backed, corporate, municipal and other financial obligations
         written by other major insurance companies.

         CapMAC's claims-paying ability is rated triple-A by Moody's Investors
         Service, Inc., Standard & Poor's Ratings Services, Duff & Phelps Credit
         Rating Co., and Nippon Investors Service, Inc., a Japanese rating
         agency. Such ratings reflect only the views of the respective rating
         agencies, are not recommendations to buy, sell or hold securities and
         are subject to revision or withdrawal at any time by such rating
         agencies.

2.       BASIS OF PRESENTATION
         CapMAC's consolidated unaudited interim financial statements have been
         prepared on the basis of generally accepted accounting principles and,
         in the opinion of management, reflect all adjustments necessary for a
         fair presentation of the CapMAC's financial condition, results of
         operations and cash flows for the periods presented. The results of
         operations for the nine months ended September 30, 1997 may not be
         indicative of the results that may be expected for the full year ending
         December 31, 1997. These consolidated financial statements and notes
         should be read in conjunction with the financial statements and notes
         included in the audited financial statements of CapMAC as of December
         31, 1996 and 1995, and for each of the years in the three-year period
         ended December 31, 1996.

3.       RECLASSIFICATIONS
         Certain prior period balances have been reclassified to conform to the
         current period presentation.


                                      F-26




<PAGE>   85
 
======================================================
 
  NO DEALER, SALESPERSON OR OTHER INDIVIDUAL HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATIONS OTHER THAN THOSE CONTAINED OR
INCORPORATED BY REFERENCE IN THIS PROSPECTUS IN CONNECTION WITH THE OFFER MADE
BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATIONS
MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE SELLER OR THE
UNDERWRITER. NEITHER THE DELIVERY OF THIS PROSPECTUS NOR ANY SALE MADE HEREUNDER
SHALL, UNDER ANY CIRCUMSTANCES, CREATE ANY IMPLICATION THAT THE INFORMATION
CONTAINED HEREIN IS CORRECT AS OF A TIME SUBSEQUENT TO THE DATE OF SUCH
INFORMATION. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER OR SOLICITATION BY
ANYONE IN ANY JURISDICTION IN WHICH SUCH OFFER OR SOLICITATION IS NOT AUTHORIZED
OR IN WHICH THE PERSON MAKING SUCH OFFER OR SOLICITATION IS NOT QUALIFIED TO DO
SO OR TO ANYONE TO WHOM IT IS UNLAWFUL TO MAKE SUCH OFFER OR SOLICITATION.
                               ------------------
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                        PAGE
                                        -----
<S>                                     <C>
Available Information...................    2
Reports to Certificateholders...........    2
Summary.................................    3
Risk Factors............................   11
The Trust...............................   14
The Onyx Portfolio of Motor Vehicle
  Contracts.............................   14
The Contracts...........................   20
Maturity and Prepayment Assumptions.....   24
Yield Considerations....................   25
Pool Factor.............................   25
Use of Proceeds.........................   25
The Seller..............................   25
The Servicer............................   26
The Certificates and the Agreement......   27
Description of the Insurer..............   37
Additional Provisions of the
  Agreement.............................   38
Certain Legal Aspects of the
  Contracts.............................   42
Certain Federal Income Tax
  Consequences..........................   45
ERISA Considerations....................   51
Underwriting............................   54
Legal Matters...........................   54
Experts.................................   54
Financial Statements of Insurer.........  F-1
             ------------------
  UNTIL MARCH   , 1998 (90 DAYS AFTER THE
DATE OF THIS PROSPECTUS) ALL DEALERS
EFFECTING TRANSACTIONS IN THE CERTIFICATES,
WHETHER OR NOT PARTICIPATING IN THIS
DISTRIBUTION, MAY BE REQUIRED TO DELIVER A
PROSPECTUS. THIS DELIVERY REQUIREMENT IS IN
ADDITION TO THE OBLIGATION OF DEALERS TO
DELIVER A PROSPECTUS WHEN ACTING AS AN
UNDERWRITER AND WITH RESPECT TO THEIR UNSOLD
ALLOTMENTS OR SUBSCRIPTIONS.
=============================================
</TABLE>
    
 
======================================================
   
                                  $166,000,000
    
 
                                ONYX ACCEPTANCE
                              GRANTOR TRUST 1997-4
 
                                      % AUTO LOAN
                           PASS-THROUGH CERTIFICATES
 
                             [ONYX ACCEPTANCE LOGO]
 
                     ONYX ACCEPTANCE FINANCIAL CORPORATION,
                                     Seller
 
                          ONYX ACCEPTANCE CORPORATION,
                                    Servicer
                          ---------------------------
                              P R O S P E C T U S
                          ---------------------------
                              MERRILL LYNCH & CO.
 
                               DECEMBER   , 1997
======================================================
<PAGE>   86
 
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 13. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION
 
   
<TABLE>
    <S>                                                                       <C>
    Registration Fee........................................................  $ 53,030.25
    Printing and Engraving..................................................    50,000.00
    Trustee's Fee...........................................................     7,500.00
    Legal Fees and Expenses.................................................   150,000.00
    Blue Sky Fees and Expenses..............................................    15,000.00
    Accountant's Fees and Expenses..........................................    15,000.00
    Rating Agency Fees......................................................    50,000.00
    Miscellaneous Fees and Expenses.........................................     4,969.75
                                                                              -----------
         Total Expenses.....................................................  $345,000.00
                                                                              ===========
</TABLE>
    
 
   
ITEM 14. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
    
 
     Under Section 145 of the Delaware General Corporation Law ("Delaware Law")
Onyx Acceptance Financial Corporation (the "Company") has broad powers to
indemnify its directors and officers against liabilities they may incur in such
capacities, including liabilities under the Securities Act of 1933, as amended
(the "Securities Act"). The Company's Bylaws (the "Bylaws") (Exhibit 3.2 hereto)
provide that the Company shall indemnify its directors and officers to the
fullest extent permitted by law and requires the Company to advance litigation
expenses upon receipt by the Company of an undertaking by the director or
officer to repay such advances if it is ultimately determined that the director
is not entitled to indemnification. The Bylaws further provide that rights
conferred under such Bylaws shall not be deemed to be exclusive of any other
right such persons may have or acquire under any bylaw, agreement, vote of
stockholders or disinterested directors, or otherwise.
 
     The Certificate of Incorporation (the "Certificate of Incorporation")
(Exhibit 3.1 hereto) provides that, pursuant to Delaware Law, its directors
shall not be liable for monetary damages for breach of the directors' fiduciary
duty of care to the Company and its stockholders. This provision in the
Certificate of Incorporation does not eliminate the duty of care, and in
appropriate circumstances equitable remedies such as injunctive or other forms
of non-monetary relief will remain available under Delaware Law. In addition,
each director will continue to be subject to liability for breach of the
director's duty of loyalty to the Company for acts or omissions not in good
faith or involving intentional misconduct, for knowing violations of law, for
actions leading to improper personal benefits to the director, and for payment
of dividends or approval of stock repurchases or redemptions that are unlawful
under Delaware Law. The provision also does not affect a director's
responsibilities under any other law, such as the federal securities laws or
state or federal environmental laws. The Certificate of Incorporation further
provides that the Company shall indemnify its directors and officers to the
fullest extent permitted by law, and requires the Company to advance litigation
expenses in the case of stockholder derivative actions or other actions, against
an undertaking by the director to repay such advances if it is ultimately
determined that the director is not entitled to indemnification. The Certificate
of Incorporation also provides that rights conferred under such Certificate of
Incorporation shall not be deemed to be exclusive of any other right such
persons may have or acquire under any statute, the Certificate of Incorporation,
the Bylaws, agreement, vote of stockholders or disinterested directors, or
otherwise.
 
     The Company has acquired a directors' and officers' liability insurance
policy that, subject to the terms and conditions of the policy, insures the
directors and officers of the Company against losses arising from any wrongful
act (as defined by the policy) in his or her capacity as a director or officer.
The policy reimburses the Company for amounts which the Company lawfully
indemnifies or for which it is required or permitted by law to indemnify its
directors and officers.
 
     In addition, the Company has entered into agreements to indemnify its
directors and certain of its officers in addition to indemnification provided
for in the Certificate of Incorporation and Bylaws. These agreements
 
                                      II-1
<PAGE>   87
 
will, among other things, indemnify the Company's directors and certain of its
officers for certain expenses (including attorneys' fees), judgments, fines and
settlement amounts incurred by such person in any action or proceeding,
including any action by or in the right of the Company, on account of services
as a director or officer of the Company or as a director or officer of any
subsidiary of the Company, or as a director or officer of any other company or
enterprise that the person provides services to at the request of the Company.
 
     The Underwriting Agreement provides for indemnification by the Company of
the Underwriter, for certain liabilities rising under the Securities Act or
otherwise. It also provides, in certain limited instances, for indemnification
by the Underwriter of the Company with respect to information furnished by or on
behalf of the Underwriter that are contained in this prospectus or included as
part of this Registration Statement.
 
ITEM 15. RECENT SALES OF UNREGISTERED SECURITIES.
 
     Not applicable.
 
ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.
 
     (a) EXHIBITS
 
   
<TABLE>
<CAPTION>
        EXHIBIT
        NUMBER                                      DESCRIPTION
        -------     ---------------------------------------------------------------------------
        <C>         <S>
           1.1      Form of Underwriting Agreement
           3.1      Certificate of Incorporation of the Seller incorporated herein by reference
                    to the Registrant's Registration Statement on Form S-1 (No. 333-4220)
           3.2      Bylaws of the Seller incorporated herein by reference to the Registrant's
                    Registration Statement on Form S-1 (No. 333-4220)
           4.1      Form of Pooling and Servicing Agreement by and among the Seller, the
                    Servicer and the Trustee
           5.1      Opinion of O'Melveny & Myers LLP, with respect to legality
           8.1      Opinion of O'Melveny & Myers LLP, with respect to federal income tax
                    matters
          23.1      Consent of O'Melveny & Myers LLP, (contained in Exhibit 5.1)
          23.2      Consent of O'Melveny & Myers LLP, (contained in Exhibit 8.1)
          23.3      Consent of KPMG Peat Marwick LLP with respect to financial statements of
                    Capital Markets Assurance Corporation
            24      Powers of Attorney*
</TABLE>
    
 
- ---------------
 
   
*  Previously filed.
    
 
     (b) FINANCIAL STATEMENT SCHEDULES
 
          Not applicable.
 
                                      II-2
<PAGE>   88
 
ITEM 17. UNDERTAKINGS.
 
     The undersigned Registrant hereby undertakes as follows:
 
          (a) To provide to the Underwriter at the closing specified in the
     Underwriting Agreement certificates in such denominations and registered in
     such names as required by the Underwriter to permit prompt delivery to each
     purchaser.
 
          (b) Insofar as indemnification for liabilities arising under the
     Securities Act of 1933 may be permitted to directors, officers and
     controlling persons of the Registrant pursuant to the foregoing provisions,
     or otherwise, the Registrant has been advised that in the opinion of the
     Securities and Exchange Commission such indemnification is against public
     policy as expressed in the Act and is, therefore, unenforceable. In the
     event that a claim for indemnification against such liabilities (other than
     the payment by the Registrant of expenses incurred or paid by a director,
     officer or controlling person of the Registrant in the successful defense
     of any action, suit or proceeding) is asserted by such director, officer or
     controlling person in connection with the securities being registered, the
     Registrant will, unless in the opinion of its counsel the matter has been
     settled by controlling precedent, submit to a court of appropriate
     jurisdiction the question whether such indemnification by it is against
     public policy as expressed in the Act and will be governed by the final
     adjudication of such issue.
 
          (c) For purposes of determining any liability under the Securities Act
     of 1933, the information omitted from the form of prospectus filed as part
     of this Registration Statement in reliance upon Rule 430A and contained in
     a form of prospectus filed by the Registrant pursuant to Rule 424(b) (1) or
     (4) or 497(h) under the Securities Act of 1933 shall be deemed to be part
     of this Registration Statement as of the time it was declared effective.
 
          (d) For the purpose of determining any liability under the Securities
     Act of 1933, each post effective amendment that contains a form of
     prospectus shall be deemed to be a new Registration Statement relating to
     the securities offered therein, and the offering of such securities at that
     time shall be deemed to be the initial bona fide offering thereof.
 
                                      II-3
<PAGE>   89
 
                                   SIGNATURES
 
   
     Pursuant to the requirements of the Securities Act of 1933, the Registrant
has duly caused this Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Irvine, State of
California, on December 4, 1997.
    
 
                                          Onyx Acceptance Financial Corporation
 
   
                                          By: /s/     JOHN W. HALL*
    
                                            ------------------------------------
                                                        John W. Hall
                                               Director, President and Chief
                                                      Executive Officer
 
   
     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed below by the following persons in the
capacities and on the dates indicated:
    
 
   
<TABLE>
<CAPTION>
                  SIGNATURE                               TITLE                     DATE
- ---------------------------------------------  ---------------------------    -----------------
<S>                                            <C>                            <C>
 
              /s/ JOHN W. HALL*                    President and Chief         December 4, 1997
- ---------------------------------------------  Executive Officer, Director
                John W. Hall                      (Principal Executive
                                                        Officer)
 
              /s/ DON P. DUFFY*                 Executive Vice President       December 4, 1997
- ---------------------------------------------      and Chief Financial
                Don P. Duffy                            Officer,
                                                   Director (Principal
                                                        Financial
                                                 and Accounting Officer)
 
             /s/ REGAN E. KELLY                 Executive Vice President,      December 4, 1997
- ---------------------------------------------           Director
               Regan E. Kelly
 
            /s/ KURT C. BICKNELL*                       Director               December 4, 1997
- ---------------------------------------------
              Kurt C. Bicknell
 
             /s/ STEVE M. BOND*                         Director               December 4, 1997
- ---------------------------------------------
                Steve M. Bond
</TABLE>
    
 
   
*By: /s/    REGAN E. KELLY
    
     -------------------------------
   
             Regan E. Kelly
    
   
            Attorney-in-fact
    
 
                                      II-4
<PAGE>   90
 
                                 EXHIBIT INDEX
 
   
<TABLE>
<CAPTION>
                                                                                      SEQUENTIALLY
EXHIBIT                                                                                 NUMBERED
NUMBER                                    DESCRIPTION                                     PAGE
- -------     ------------------------------------------------------------------------  ------------
<C>         <S>                                                                       <C>
   1.1      Form of Underwriting Agreement..........................................
   3.1      Certificate of Incorporation of the Seller incorporated herein by
            reference to the Registrant's Registration Statement on Form S-1 (No.
            333-4220)...............................................................
   3.2      Bylaws of the Seller incorporated herein by reference to the
            Registrant's Registration Statement on Form S-1 (No. 333-4220)..........
   4.1      Form of Pooling and Servicing Agreement by and among the Seller, the
            Servicer and the Trustee................................................
   5.1      Opinion of O'Melveny & Myers LLP, with respect to legality..............
   8.1      Opinion of O'Melveny & Myers LLP, with respect to federal income tax
            matters.................................................................
  23.1      Consent of O'Melveny & Myers LLP, (contained in Exhibit 5.1)............
  23.2      Consent of O'Melveny & Myers LLP, (contained in Exhibit 8.1)............
  23.3      Consent of KPMG Peat Marwick LLP with respect to financial statements of
            Capital Markets Assurance Corporation...................................
    24      Powers of Attorney*.....................................................
</TABLE>
    
 
- ---------------
 
   
 *  Previously filed
    

<PAGE>   1
                                                                     Exhibit 1.1

                      Onyx Acceptance Grantor Trust 1997-4
                   _____% Auto Loan Pass-Through Certificates

                      Onyx Acceptance Financial Corporation
                                    as Seller

                           Onyx Acceptance Corporation
                                   as Servicer


                             UNDERWRITING AGREEMENT


                                December __, 1997


Merrill Lynch, Pierce, Fenner & Smith
                 Incorporated
World Financial Center
North Tower, 15th Floor
New York, New York  l0281-1315

Ladies and Gentlemen:

               1. Introductory. Onyx Acceptance Financial Corporation (the
"Company") proposes to cause Onyx Acceptance Grantor Trust 1997-4 (the "Trust")
to sell to Merrill Lynch, Pierce, Fenner & Smith Incorporated (the
"Underwriter") 6.35% Auto Loan Pass-Through Certificates, Series 1997-4 (the
"Certificates"). The Certificates will be issued pursuant to a Pooling and
Servicing Agreement between the Company, as Seller, Onyx Acceptance Corporation
as Servicer (the "Servicer" or "Onyx"), Bankers Trust Company as Trustee (the
"Trustee"), dated as of December 1, 1997 (the "Pooling and Servicing
Agreement"). Pursuant to an insurance and reimbursement agreement (the
"Insurance Agreement") among the Company, Onyx Acceptance Corporation, the
Trustee and Capital Markets Assurance Corporation ("the Insurer"), the Insurer
has issued its surety bond (the "Surety Bond") to the Trustee for the benefit of
the Certificateholders guaranteeing timely payment of interest and principal on
the Certificates. In addition, Onyx will enter into a capitalized interest
agreement dated as of December 1, 1997 with the Company (the "Capitalized
Interest Agreement") which will assign it to the Trust. The assets of the Trust
will include, among other 




<PAGE>   2
things, (i) a pool (the " Contract Pool") of fixed rate Rule of 78's and Simple
Interest Method motor vehicle retail installment sales contracts (the "Initial
Contracts") secured by new and used automobiles and light-duty trucks (the
"Initial Financed Vehicles"), certain monies due or to become due thereunder on
or after the Cutoff Date (as hereinafter defined), such Contracts to be sold to
the Trust by the Seller and serviced by the Servicer, (ii) the Surety Bond,
(iii) security interests in the Financed Vehicles and the rights to receive
proceeds from claims on certain insurance policies covering the Financed
Vehicles or the individual obligors under each related Contract and the right to
proceeds under a blanket insurance policy, (iv) amounts on deposit in a trust
account established for the benefit of the Certificateholders (the "Pre-funding
Account"), (v) all amounts on deposit in the Collection Account, (vi) the right
of the Company to cause Onyx to repurchase certain Contracts under certain
circumstances, and (vii) all proceeds of the foregoing. The Certificates will be
issued in an aggregate principal amount of $___________ which is equal to the
sum of $___________the Original Pool Balance of the Contracts and the amount on
deposit in the Pre-Funding Account as of the opening of business on December 1,
1997 (the "Cutoff Date"). From time to time during the Funding Period pursuant
to the Pur chase Agreement, Onyx will be obligated to sell, and the Seller will
be obligated to purchase, additional Rule of 78's and Simple Interest Method
retail motor vehicle retail installment sales contracts (the "Subsequent
Contracts" and together with the Initial Contracts the "Contracts") secured by
new and used automobiles and light duty trucks (the "Subsequent Financed
Vehicles" and together with the Initial Financed Vehicles the "Financed
Vehicles"), which Subsequent Contracts will be described in a transfer
certificate delivered by the Company on each subsequent Transfer Date (the
"Transfer Certificate"). The Subsequent Contracts will be sold from the Seller
to the Trust on the same Business Day such Subsequent Contracts are sold by Onyx
to the Seller (each such date a "Subsequent Transfer Date"). The maximum
aggregate principal amount of Subsequent Contracts to be sold during the Funding
Period by Onyx to the Seller and by the Seller to the Trust is $________.
Capitalized terms used herein and not otherwise herein defined shall have the
meanings assigned to such terms in the Pooling and Servicing Agreement.

               The Company hereby agrees with the Underwriter, as follows:


                                        2


<PAGE>   3
               2. Representations and Warranties of the Company. The Company
represents and warrants to, and agrees with the Underwriter that:

                             (i) A registration statement on Form S-1 (No.
        333-_____), including a prospectus and such amendments thereto as may
        have been required on the date hereof, relating to the Certificates, has
        been filed with the Securities and Exchange Commission (the
        "Commission"). The conditions to the use of a registration statement on
        Form S-1 under the Securities Act of 1933, as amended (the "Act"), as
        set forth in the General Instructions to Form S-1, have been, or will
        prior to the effective date of the Registration Statement be, satisfied
        in all material respects with respect to the Company and the 
        Registration Statement.

                             (ii) The Company will next file with the Commission
        either, (A) prior to the effective ness of such registration statement,
        a further amendment thereto (including the form of final prospectus) or
        (B) after effectiveness of such registration statement, a final
        prospectus in accordance with Rules 430A and 424(b) (each, as
        hereinafter de fined). In the case of clause (B), the Company has
        included in such registration statement, as amended at the Effective
        Date (as hereinafter defined), all information (other than Rule 430A
        Information (as hereinafter defined)) required by the Act and the rules
        and regulations thereunder (the "Rules and Regulations") to be included
        in the prospectus with respect to the Certificates and the offering
        there of. As filed, such amendment and form of final prospectus, or such
        final prospectus, shall include all Rule 430A Information and, except to
        the extent the Under-


                                       3


<PAGE>   4
        writer shall agree in writing to a modification, shall be in all
        substantive respects in the form furnished to the Underwriter prior to
        the Execution Time (as hereinafter defined) or, to the extent not
        completed at the Execution Time, shall contain only such specific
        additional information and other changes (beyond that contained in the
        latest Preliminary Prospectus (as hereinafter defined) which has
        previously been furnished to the Underwriter) as the Company has advised
        the Under writer, prior to the Execution Time, will be included or made
        therein.

                      The terms which follow, when used in this Agreement, shall
        have the meanings indicated. The term "Effective Date" shall mean each
        date that the Registration Statement and any post-effective amendment
        or amendments thereto became or become effective under the Act.
        "Execution Time" shall mean the date and time that this Agreement is
        executed and delivered by the parties hereto. "Preliminary Prospectus"
        shall mean any preliminary prospectus referred to in the preceding
        paragraph and any preliminary prospectus included in the Registration
        Statement which, as of the Effective Date, omits Rule 430A Information.
        "Prospectus" shall mean the prospectus relating to the Certificates
        that is first filed with the Commission pursuant to Rule 424(b) and any
        prospectus subsequently filed pursuant to Rule 424 or, if no filing
        pursuant to Rule 424(b) is required, shall mean the form of final
        prospectus included in the Registration Statement at the Effective
        Date. "Registration Statement" shall mean the registration statement
        referred to in the preceding paragraph and any registration statement
        required to be filed under the Act or the Rules and Regulations,
        including incorporated documents, exhibits and financial statements, in
        the form in which it has, or shall, become effective and, in the event
        that any post effective amendment thereto becomes effective prior to the
        Closing Date (as hereinafter defined), shall also mean such registration
        statement as so amended. Such term shall include Rule 430A Information
        deemed to be included therein at the Effective Date as provided by Rule
        430A. "Rule 424" and "Rule 430A" refer to such rules and regulations
        under the Act. "Rule 430A Information" means information with respect to
        the Certificates and the offering thereof permitted to be omitted from
        the Registration Statement when it becomes effective pursuant to Rule
        430A.

                             (iii) On the Effective Date, the Registration
        Statement did, or will, comply in all material respects with the
        applicable requirements of the Act and the Rules and Regulations; on the
        Effective Date and when the Prospectus is first filed


                                        4


<PAGE>   5
        (if required) in accordance with Rule 424(b) and on the Closing Date,
        the Prospectus (and any supplements thereto) will comply in all
        material respects with the applicable requirements of the Act and the
        Rules and Regulations; on the Effective Date, the Registration Statement
        did not, or will not, contain any untrue statement of a material fact or
        omit to state any material fact required to be stated there in or
        necessary in order to make the statements therein not misleading; and,
        on the Effective Date, the Prospectus, if not filed pursuant to Rule
        424(b), did not, or will not, and on the date of any filing pursuant to
        Rule 424(b) and on the Closing Date, the Prospectus (together with any
        supplement thereto) will not, include any untrue statement of a material
        fact or omit to state a material fact necessary in order to make the
        statements therein, in the light of the circumstances under which they
        were made, not misleading; provided, however, that the Company makes no
        representations or warranties as to the information contained in, or
        omitted from, the Registration Statement or the Prospectus (or any
        supplements thereto) in reliance upon, and in conformity with,
        information furnished in writing to the Company on the Underwriter's
        behalf specifically for use in connection with the preparation of the
        Registration Statement or the Prospectus (or any supplements thereto).

                             (iv) The Company has been duly incorporated and is
        validly existing as a corporation in good standing under the laws of its
        jurisdiction of incorporation, with full power and authority (corporate
        and other) to own its properties and conduct its businesses as described
        in the Prospectus, and is duly qualified to transact business as a
        foreign corporation in good standing under the laws of each jurisdiction
        where the ownership or leasing of its properties or the conduct of its
        business requires such qualification.

                             (v) As of the Closing Date in the case of the
        Initial Contracts, and as of each Subsequent Transfer Date in the case
        of the related Sub sequent Contracts, the representations and warranties
        of the Company, as Seller, in the Pooling and Servicing Agreement will 
        be true and correct, and


                                        5


<PAGE>   6
        each Contract will satisfy the conditions set forth in Sections 2.2(b)
        and 2.2(d), respectively, there of.

                             (vi) No consent, approval, authorization or order
        of, or filing with, any court or governmental agency or body is required
        to be obtained or made by the Company for the consummation of the
        transactions contemplated by this Agreement, except such as have been
        obtained and made under the Act, such as may be required under state
        securities laws and the filing of any financing statements required to
        perfect the Trust's interest in the Contracts.

                             (vii) The Company is not in violation of its
        Certificate of Incorporation or By-Laws or in default in the performance
        or observance of any obligation, agreement, covenant or condition
        contained in any agreement or instrument to which it is a party or by
        which it or its properties are bound which would have a material adverse
        effect on the transactions contemplated herein or in the Pooling and
        Servicing Agreement, the Purchase Agreement, the Capitalized Interest
        Agreement or the Insurance Agreement. The execution, delivery and
        performance of this Agreement, the Pooling and Servicing Agreement, the
        Purchase Agreement, the Capitalized Inter est Agreement or the Insurance
        Agreement and the issuance and sale of the Certificates and compliance
        with the terms and provisions thereof will not result in a breach or
        violation of any of the terms and provisions of, or constitute a default
        under, any statute, rule, regulation or order of any governmental
        agency or body or any court having juris diction over the Company or any
        of its properties or any agreement or instrument to which the Company is
        a party or by which the Company is bound or to which any of the
        properties of the Company is subject, or By-Laws of the Company and the
        Company has full corporate power and authority to authorize, cause the
        Trust to issue, and sell the Certificates as contemplated by this
        Agreement, to enter into this Agreement, the Pooling and Servicing
        Agreement, the Purchase Agreement, the Capitalized Interest Agreement
        and the Insurance Agreement and to consummate the transactions
        contemplated herein and therein.


                                        6


<PAGE>   7
                             (viii) This Agreement has been duly authorized,
        executed and delivered by the Company.

               3. Purchase, Sale, Payment and Delivery of Certificates. On the
basis of the representations, warranties and agreements herein contained, but
subject to the terms and conditions herein set forth, the Company agrees to sell
to the Underwriter, and the Underwriter agrees to purchase from the Company
$___________ aggregate principal amount of the Certificates. The Certificates
are to be purchased at a purchase price of _________% of the aggregate principal
amount thereof plus accrued interest, if any, from December __, 1997.

               The Company will deliver the Certificates to the Underwriter
against payment of the purchase price in immediately available funds by wire
transfer to the order of the Company at the offices of the Company at 8001,
Irvine Center Drive, Suite 500, Irvine, California 92718 at 10:00 a.m., New York
City time on December __, 1997 or at such other time not later than seven full
business days thereafter as the Underwriter and the Company determine, such
time being herein referred to as the "Closing Date". The Certificates so to be
delivered shall be represented by one or more global certificates registered in
the name of Cede & Co., as nominee for The Depository Trust Company and
definitive certificate(s) registered in the name(s) provided by the
Underwriter, each in such numbers as the Underwriter shall reasonably request
not later than 48 hours prior to the Closing Date. The Company shall make such
definitive certificates representing the Certificates available for inspection
by the Underwriter at the office at which the Certificates are to be delivered
no later than 10:00 a.m., New York City time, on the business day prior to the
Closing Date.

               4. Offering by the Underwriter. (a) It is understood that, after
the Registration Statement becomes effective, the Underwriter proposes to offer
the Certificates for sale to the public (which may include selected brokers and
dealers) as set forth in the Prospectus.

               (b) The Underwriter may prepare and provide to prospective
investors certain ABS Term Sheets, Structural Term Sheets and Collateral Term
Sheets in connection with its offering of the Certificates, subject to the
following conditions:


                                       7


<PAGE>   8

                      (i) The Underwriter shall have complied with the
requirements of the no-action letter, dated February 17, 1995, issued by the
Commission to the Public Securities Association (the "No-Action Letter").

                      (ii) For purposes hereof, "ABS Term Sheets", "Structured
Term Sheets" and "Collateral Term Sheets" shall have the meanings given such
terms in the No-Action Letter but shall include only those ABS Term Sheets,
Structured Term Sheets or Collateral Term Sheets that have been prepared or
delivered to prospective investors by or at the direction of the Underwriter.

                      (iii) All ABS Term Sheets provided to prospective
investors that are required to be filed pursuant to the No-Action Letter shall
bear a legend substantially in the form attached hereto as Exhibit A. The
Company shall have the right to require specific legends or notations to appear
on any ABS Term Sheets, the right to require changes regarding the use of
terminology and the right to determine the types of information appearing
therein. Notwithstanding the foregoing, this subsection (iii) will be satisfied
if all ABS Term Sheets referred to herein bear a legend in a form previously
approved in writing by the Company.

                      (iv) The Underwriter shall have provided the Company with
representative forms of all ABS Term Sheets prior to their first use, to the
extent such forms have not previously been approved in writing by the Company
for use by the Underwriter. The Underwriter shall have provided to the Company,
for filing as a post-effective amendment to the Registration Statement as
provided in Section 5(i), copies (in such format as required by the Company) of
all ABS Term Sheets that are required to be filed with the Commission pursuant
to the No-Action Letter. The Underwriter may provide copies of the foregoing in
a consolidated or aggregated form including all information required to be
filed. All ABS Term Sheets described in this subsection (iv) shall have been
provided to the Company not later than 10:00 a.m. (New York City time) not less
than one business day before filing thereof is required to be made with the
Commission pursuant to the No-Action Letter. The Underwriter shall have not
provided to any investor or prospective investor in the Certificates any ABS
Term Sheets on or after the day on which ABS Term Sheets are required to be
provided to the Company pursuant to this subsection (iv) (other than copies of
ABS Term Sheets previously submitted to the Company in accordance with this
subsection (iv) for filing pursuant to Section 


                                       8


<PAGE>   9

5(i)), unless such ABS Term Sheets are preceded or accompanied by the delivery
of a Prospectus to such investor or prospective investor.

                      (v) All information included in the ABS Term Sheets shall
have been generated based on substantially the same methodology and assumptions
that are used to generate the information in the Prospectus as set forth
therein; provided that the ABS Term Sheets may have included information based
on alternative methodologies or assumptions if specified therein. If any ABS
Term Sheets that are required to be filed were based on assumptions with respect
to the Contract Pool that differ from the final Contract Pool information in any
material respect or on Certificate structuring terms that were revised in any
material respect prior to the printing of the Prospectus, the Underwriter shall
have prepared revised ABS Term Sheets based on the final Contract Pool
information and structuring assumptions, shall have circulated such revised ABS
Term Sheets to all recipients of the preliminary versions thereof that indicated
orally to the Underwriter they would purchase all or any portion of the
Certificates, and shall have included such revised ABS Term Sheets (marked, "as
revised") in the materials delivered to the Company pursuant to subsection (iv)
above.

                      (vi) The Company shall not be obligated to file any ABS
Term Sheets that have been determined to contain any material error or omission,
provided that, at the request of the Underwriter, the Company will file ABS Term
Sheets that contain a material error or omission if clearly marked "superseded
by materials dated _______" and accompanied by corrected ABS Term Sheets that
are marked, "supersedes material previously dated _______, as corrected." If,
within the period during which the Prospectus relating to the Certificates is
required to be delivered under the Act, any ABS Term Sheets are determined, in
the reasonable judgment of the Company or the Underwriter, to contain a material
error or omission, the Underwriter shall prepare a corrected version of such ABS
Term Sheets, shall circulate such corrected ABS Term Sheets to all recipients of
the prior versions thereof that either indicated orally to the Underwriter they
would purchase all or any portion of the Certificates, or actually purchased all
or any portion thereof, and shall deliver copies of such corrected ABS Term
Sheets (marked, "as corrected") to the Company for filing with the Commission in
a subsequent post-effective amendment to the Registration Statement (subject to
the Company's obtaining an accountant's comfort letter in respect of such
corrected ABS Term Sheets, which shall be at the expense of the Underwriter).


                                       9


<PAGE>   10


                      (vii) The Underwriter shall be deemed to have represented
as of the Closing Date, that, except for ABS Term Sheets provided to the Company
pursuant to subsection (iv) above, the Underwriter did not provide any
prospective investors with any information in written or electronic form in
connection with the offering of the Certificates that is required to be filed
with the Commission in accordance with the No-Action Letter.

                      (viii) In the event of any delay in the delivery by the
Underwriter to the Company of all ABS Term Sheets required to be delivered in
accordance with subsection (iv) above, or in the delivery of the accountant's
comfort letter in respect thereof pursuant to Section 5(x), the Company shall
have the right to delay the release of the Prospectus to investors or to the
Underwriter, to delay the Closing Date and to take other appropriate actions in
each case as necessary in order to allow the Company to comply with its
agreement set forth in Section 5(x) to file the ABS Term Sheets by the time
specified therein.

               5. Certain Agreements of the Company. The Company agrees with the
Underwriter that:

                             (i) The Company will use every reason able effort
        to cause the Registration Statement, and any amendment thereto, if not
        effective at the Execution Time, to become effective. If the
        Registration Statement has become or becomes effective pursuant to Rule
        430A, or filing of the Prospectus is otherwise required under Rule
        424(b), the Company will file the prospectus, properly completed,
        pursuant to Rule 424(b) within the time period prescribed and will
        provide evidence satisfactory to the Underwriter of such timely filing.
        The Company will advise the Underwriter promptly of any proposal to
        amend or supplement the Registration Statement or the Prospectus, and
        will not effect any such amendment or supplementation to which the
        Underwriter shall reasonably object. The Company will also advise you
        promptly of the effectiveness of any amendment or supplementation of the
        Registration Statement or Prospectus, of any request by the Commission
        for any amendment or supple mentation of the Registration Statement or
        the Prospectus or for any additional information, of the receipt by the
        Company of any notification with respect to the suspension of
        qualification of the Certificates for sale in any jurisdiction or the
        ini-


                                       10


<PAGE>   11

        tiation or threatening of any proceeding for such purpose and of the
        institution by the Commission of any stop order proceeding in respect of
        the Registration Statement, and will use every reasonable effort to
        prevent the issuance of any such stop order and to obtain as soon as
        possible its lifting, if issued.

                             (ii) If, at any time when a prospectus relating to
        the Certificates is required to be delivered under the Act, any event
        occurs as a result of which the Prospectus as then amended or
        supplemented would include an untrue statement of a material fact or
        omit to state any material fact necessary to make the statements
        therein, in the light of the circumstances under which they were made,
        not misleading, or if it is necessary at any time to amend the
        Prospectus to comply with the Act, the Company promptly will prepare and
        file with the Commission (subject to the Underwriter's prior review
        pursuant to paragraph (i) of this Section 5) an amendment or supplement
        which will correct such statement or omission or an amendment or
        supplement which will effect such compliance.

                             (iii) As soon as practicable, the Company will
        cause the Trust to make generally available to the Certificateholders
        of the Trust an earnings statement or statements of the Trust covering
        a period of at least 12 months beginning after the Effective Date of the
        Registration Statement which will satisfy the provisions of Section
        11(a) of the Act and Rule 158 of the Commission promulgated thereunder.

                             (iv) The Company will furnish to the Underwriter
        copies of the Registration Statement, each related preliminary
        prospectus, the Prospectus and all amendments and supplements to such
        documents, in each case as soon as available and in such quantities as
        the Underwriter may reasonably request.

                             (v) The Company will cooperate with the Underwriter
        in arranging for the qualification of the Certificates for sale and the
        determination of their eligibility for investment under the laws of such
        jurisdictions as the Underwriter designates and will continue such
        qualifications in effect so long as required for the distribution of the
        Certificates;


                                       11


<PAGE>   12

        provided, however, that the Company shall not be obligated to qualify to
        do business in any jurisdiction in which it is not currently so
        qualified or to take any action which would subject it to general or
        unlimited service of process in any jurisdiction where it is not now so
        subject.

                             (vi) For a period from the date of this Agreement
        until the retirement of the Certificates, the Company will furnish to
        the Underwriter copies of each certificate and the annual statements of
        compliance delivered to the Trustee pursuant to Article III of the
        Pooling and Servicing Agreement and the annual independent public
        accountant's reports furnished to the Trustee pursuant to Article III of
        the Pooling and Servicing Agreement, as soon as practicable after such
        statements and reports are furnished to the Trustee.

                             (vii) So long as any of the Certificates are
        outstanding, the Company will furnish to you as soon as practicable, (A)
        all documents distributed, or caused to be distributed, by the Servicer
        to the Certificateholders, (B) all documents filed, or caused to be
        filed, by the Company with the Commission pursuant to the Securities Act
        of 1934, as amended, any order of the Commission thereunder or pursuant
        to a "no-action" letter from the staff of the Commission and (C) from
        time to time, such other information in the possession of the Company
        concerning the Trust and any other information concerning the Company
        filed with any governmental or regulatory authority which is otherwise
        publicly available as you may reasonably re quest.

                             (viii) On or before the Closing Date with respect
        to the Initial Contracts, and on or before each Subsequent Transfer Date
        with respect to the Subsequent Contracts to be transferred to the Trust
        on such date, the Company shall cause its computer records relating to
        the Contracts to be marked to show the Trust's absolute ownership of the
        Contracts and shall cause the Servicer to mark its computer records
        relating to the Contracts to show the sale to the Company of the
        Contracts and its subsequent transfer to the Trust, and from and after
        the Closing Date or Subsequent Transfer Date, as the case may be,


                                       12


<PAGE>   13

        the Company shall not and shall instruct the Servicer not to take any
        action inconsistent with the Trust's ownership of such Contracts, other
        than as permitted by the Pooling and Servicing Agreement.

                             (ix) The Company will file with the Commission a
        post-effective amendment setting forth all ABS Terms Sheet provided to
        the Company by the Underwriter and identified by it as such within the
        time period allotted for such filing pursuant to the No-Action Letter;
        provided, however, that prior to such filing of the ABS Term Sheets
        (other than any ABS Term Sheets that are not based on the Contract Pool
        information) by the Company, the Underwriter must comply with its
        obligations pursuant to Section 4 and the Company must receive a letter
        from Coopers & Lybrand, certified public accountants, satisfactory in
        form and substance to the Company, to the effect that such accountants
        have performed certain specified procedures, all of which have been
        agreed to by the Company, as a result of which they have determined that
        the information included in the ABS Term Sheets (if any), provided by
        the Underwriter to the Company for filing on a post-effective amendment
        pursuant to Section 4 and, if the Company then so specifies, this
        subsection (i), and that the accountants have examined in accordance
        with such agreed upon procedures, is accurate except as to such matters
        that are not deemed by the Company to be material. The foregoing letter
        shall be at the expense of the Underwriter. The Company shall file any
        corrected ABS Term Sheets described in Section 4(b)(vi) as soon as
        practicable following receipt thereof.

               6. Payment of Expenses. Except as provided in Sections 4(b) and
5(ix) the Company will pay all expenses incident to the performance of its
obligations under this Agreement, including (i) the printing and filing of the
Registration Statement as originally filed and of each amendment thereto, (ii)
the Trustee's fees and the fees and disbursements of the counsel to the Trustee,
(iii) any up-front fees and premiums payable to the Insurer and the fees and
disbursements of counsel to the Insurer, (iv) the fees and disbursements of the
accountants, (v) the fees of the rating agencies and (vi) blue sky expenses.


                                       13


<PAGE>   14

               7. Conditions to the Obligations of the Underwriter. The 
obligation of the Underwriter to purchase and pay for the Certificates will be
subject to the accuracy of the representations and warranties on the part of
the Company herein, to the accuracy of the written statements of officers of the
Company made pursuant to the provisions hereof, to the performance by the
Company of its obligations hereunder and to the following additional conditions
precedent:

                             (i) On or prior to the date of this Agreement, the
        Underwriter shall have received a letter, dated the date of this
        Agreement, of Coopers & Lybrand and substantially in the form heretofore
        agreed, which letter shall be in form and substance agreed to by the
        Underwriter.

                             (ii) If the Registration Statement has not become
        effective prior to the date of this Agreement, unless the Underwriter
        agrees in writing to a later time, the Registration Statement shall have
        become effective not later than (A) 6:00 p.m., New York City time, on
        the date of determination of the public offering price, if such
        determination occurred at or prior to 12:00 noon, New York City time, on
        such date or (B) 3:00 p.m. on the business day following the day on
        which the public offering price was deter mined, if such determination
        occurred after 12:00 noon, New York City time, on such date; if filing
        of the Prospectus, or any supplement thereto, is required pursuant to
        Rule 424(b), the Prospectus shall be filed in the manner and within the
        time period required by Rule 424(b); and no stop order suspending the
        effectiveness of the Registration Statement shall have been issued and
        no proceedings for that purpose shall have been instituted or
        threatened.

                             (iii) Subsequent to the execution and delivery of
        this Agreement, there shall have not occurred (a) any change, or any
        development involving a prospective change, in or affecting particularly
        the business or properties of the Company or Onyx which, in the
        reasonable judgment of the Underwriter materially impairs the
        investment quality of the Certificates; (b) any suspension or material
        limitation of trading in securities generally on the New York Stock
        Exchange, or any setting of minimum prices for trading on such exchange,
        or any suspension of trading of any


                                       14


<PAGE>   15

        securities of Onyx on any exchange or in the over-the-counter market by
        such exchange or over-the-counter market or by the Commission; (c) any
        banking moratorium declared by Federal, New York or California authori-
        ties; (d) any outbreak or material escalation of major hostilities or
        any other substantial national or international calamity or emergency
        if, in the reasonable judgment of the Underwriter, the effect of any
        such outbreak, escalation, calamity or emergency on the United States
        financial markets makes it impracticable or inadvisable to proceed with
        completion of the sale of, and any payment for, the Certificates.

                      (iv) The Underwriter shall have received an opinion, dated
        the Closing Date, of O'Melveny & Myers LLP, counsel of the Company,
        substantially to the effect that:

                                    (a) The Company (1) is duly incorporated and
               is validly existing and in good standing under the laws of the
               State of Delaware, (2) has the corporate power and corporate
               authority to own its properties and conduct its business as
               described in the Prospectus and (3) had at all relevant times,
               and now has, the power, authority and legal right to acquire, own
               and sell the Contracts;

                                    (b) The Company has, or at the time such
               agreement was executed and delivered, had, the corporate power
               and corporate authority to execute and deliver this Agreement,
               the Pooling and Servicing Agreement, the Purchase Agreement, the
               Capitalized Interest Agreement and the Insurance Agreement and to
               consummate the transactions contemplated herein and therein;

                                    (c) No consent, approval, authorization or
               order of, or filing with, any California, Delaware or federal
               governmental agency or body or any court is or was required by
               the Company to perform the transactions contemplated by this
               Agreement, Pooling and Servicing Agreement, the Purchase
               Agreement, the Capitalized Interest Agreement or the Insurance
               Agreement except for (1) filing of a Uniform Commercial Code
               financing statement in the State of 


                                       15


<PAGE>   16
               California with respect to the transfer of the Contracts to the
               Trust pursuant to the Pooling and Servicing Agreement and the
               sale of the Contracts to the Company pursuant to the Purchase
               Agreement and (2) such consents, approvals, authorizations,
               orders or filings as may be required under the federal and
               state securities laws;

                                    (d) None of the execution, delivery and
               performance by the Company of this Agreement, the Pooling and
               Servicing Agreement, the Purchase Agreement, the Capitalized
               Interest Agreement or the Insurance Agreement, the transfer of
               the Contracts to the Trust, the assignment of the security
               interests of the Company in the Financed Vehicles, the issuance
               and sale of the Certificates or the consummation of any other of
               the transactions contemplated herein or in the Pooling and
               Servicing Agreement, the Purchase Agreement, the Capitalized
               Interest Agreement or the Insurance Agreement conflicts or will
               conflict with, has resulted or will result in a breach,
               violation or acceleration of any of the terms of, or has
               constituted or will constitute a default under, the By-Laws or
               the Certificate of Incorporation of the Company, as amended, or,
               to the best of such counsel's knowledge, any rule, order, statute
               or regulation known to such counsel to be currently applicable to
               the Company of any court, regulatory body, administrative agency
               or governmental body having jurisdiction over the Company or the
               terms of any material indenture or other material agreement or 
               instrument known to such counsel to which the Company is a party
               or by which it or its properties are bound;

                                    (e) To the best knowledge of such counsel,
               after due inquiry, there are no actions, proceedings or
               investigations pending or threatened before any court,
               administrative agency or other tribunal (1) asserting the
               invalidity of this Agreement, the Pooling and Servicing 
               Agreement, the Purchase Agreement, the Capitalized Interest 
               Agreement or the Insurance Agreement or the Certificates, 
               (2) seeking to prevent the 


                                       16


<PAGE>   17
               issuance of the Certificates or the consummation of any of the
               transactions contemplated by this Agreement, the Pooling and
               Servicing Agreement, the Purchase Agreement, the Capitalized
               Interest Agreement or the Insurance Agreement (3) seeking
               adversely to affect the federal income tax at tributes of the
               Certificates as described in the Prospectus under the headings
               "Prospectus Summary -- Tax Status" and "Certain Tax
               Consequences";

                                    (f) This Agreement, the Pooling and
               Servicing Agreement, the Purchase Agreement, the Capitalized
               Interest Agreement and the Insurance Agreement have each been
               duly authorized, executed and delivered by the Company;

                                    (g) The Contracts constitute "chattel paper"
               as defined in Section 9-105(a)(2) of the Uniform Commercial Code
               of the State of California;

                                    (h) The statements in the Prospectus under
               the caption "Certain Legal Aspects of the Contracts," and "ERISA
               Considerations" to the extent they constitute matters of
               California or federal law or legal conclusions, are correct in
               all material respects;

                                    (i) The Certificates have been duly and
               validly authorized and, when executed, authenticated and issued
               in accordance with the terms of the Pooling and Servicing
               Agreement, and delivered to and paid for by the Underwriter
               pursuant to this Agreement, will be duly and validly issued and
               outstanding and will be entitled to the benefits of the Pooling
               and Servicing Agreement;

                                    (j) Assuming the authorization, execution
               and delivery thereof by the Trustee and the Servicer with respect
               to the Pooling and Servicing Agreement, and by Onyx with respect
               to Purchase Agreement, the Capitalized Interest Agreement and the
               Insurer with respect to the Insurance Agreement, each such
               agreement constitutes the legal, valid and binding agreement of
               the Company, enforceable against the Company in 


                                       17


<PAGE>   18
               accordance with its terms, subject, as to enforcement, to (1)
               the effect of bankruptcy, insolvency, reorganization, moratorium,
               conservatorship, receivership or other similar laws of general
               application relating to or affecting creditors' rights generally
               (2) the application of general principles of equity (regardless
               of whether such enforceability is considered in a proceeding in
               equity or at law); and (3) the unenforceability under certain
               circumstances of provisions indemnifying a party against
               liability where such indemnification is contrary to public
               policy;

                                    (k) The Registration Statement became
               effective under the Act as of the date and time specified in such
               opinion; after due inquiry, to the best of such counsel's
               knowledge, no stop order suspending the effectiveness of the
               Registration Statement has been issued and no proceedings for
               that purpose have been instituted or are pending or contemplated
               under the Act; the Registration Statement, and each amendment
               thereof or supplement thereto as of its Effective Date and the
               Prospectus as of its date of issuance appeared on its face to be
               appropriately responsive in all material respects to the
               applicable requirements of the Securities Act and the Rules and
               Regulations, and such counsel need not opine as to the financial
               statements and related notes, schedules and other financial and
               statistical data included therein;

                                    (l) The Certificates, the Pooling and
               Servicing Agreement, the Purchase Agreement, the Capitalized
               Interest Agreement and the Insurance Agreement conform in all
               material respects to the descriptions thereof contained in the
               Registration Statement and the Prospectus;

                                    (m) The Pooling and Servicing Agreement is
               not required to be qualified under the Trust Indenture Act of
               1939, as amended; and

                                    (n) The Trust is not now, and immediately
               following the sale of the Certificates pursuant to this
               Agreement will not be,


                                       18


<PAGE>   19
               required to be registered under the Investment Company Act of
               1940, as amended.

                             In addition, such counsel shall opine as to certain
        matters relating to the acquisition by the Company of a perfected first
        priority security interest in the vehicles financed by motor vehicle
        installment loans made by the Company.

                             In rendering such opinion, such counsel may rely as
        to matters of fact, to the extent deemed proper and as stated therein,
        on certificates of responsible officers of the Company and public 
        officials. References to the Prospectus in this paragraph (iv) include
        any supplements thereto.

                      (v) The Underwriter shall have received an opinion, dated
        the Closing Date, of O'Melveny & Myers LLP, counsel to Onyx,
        substantially to the effect that:

                                    (a) Onyx (1) is duly incorporated and is
               validly existing and in good standing under the laws of the State
               of California, (2) has the corporate power and corporate
               authority to own its properties and conduct its business as
               described in the Prospectus and (3) had at all relevant times,
               and now has, the power, authority and legal right to acquire, own
               and sell the Contracts;

                                    (b) Onyx has the corporate power and
               corporate authority to execute and deliver the Pooling and
               Servicing Agreement, the Capitalized Interest Agreement and the
               Purchase Agreement and at the time it was executed and 
               delivered, had the power and authority to execute and deliver 
               the Purchase Agreement, the Capitalized Interest Agreement and 
               the Pooling and Servicing Agreement and to consummate the
               transactions contemplated herein and therein;

                                    (c) No consent, approval, authorization or
               order of, or filing with, any California or federal governmental
               agency or body or any court is required by Onyx to perform the
               transactions contemplated by the Pooling and Servicing
               Agreement, the Capitalized


                                       19


<PAGE>   20
               Interest Agreement or the Purchase Agreement except for (1)
               filing of a Uniform Commercial Code financing statement in the
               State of California with respect to the sale of the Contracts
               to the Company pursuant to the Purchase Agreement and the
               transfer of the Contracts to the Trust pursuant to the Pooling
               and Servicing Agreement and (2) such consents, approvals, 
               authorizations, orders or filings as may be required under the
               federal and state securities laws; the opinion set forth in this
               sentence is limited to such authorizations, approvals, consents
               and orders which, in such counsel's experience, are normally
               applicable to transactions of the type contemplated by the
               Pooling and Servicing Agreement, the Capitalized Inter est
               Agreement and the Purchase Agreement;

                                    (d) None of the execution, de livery and
               performance by Onyx of the Pooling and Servicing Agreement, the
               Capitalized Interest Agreement or the Purchase Agreement, or the
               transfer of the Contracts to the Company, has conflicted with or
               will conflict with, has resulted or will result in a breach,
               violation or acceleration of any of the terms of, or has
               constituted or will constitute a default under, the By-Laws or
               the Certificate of Incorporation of Onyx, as amended, or, to the
               best of such counsel's knowledge, any rule, order, statute or
               regulation known to such counsel to be currently applicable to
               Onyx of any court, regulatory body, administrative agency or
               governmental body having jurisdiction over Onyx or the terms of
               any mate rial indenture or other material agreement or 
               instrument known to such counsel to which Onyx is a party or by
               which it or its properties are bound;

                                    (e) The Pooling and Servicing Agreement, the
               Capitalized Interest Agreement and the Purchase Agreement have
               each been duly authorized, executed and delivered by Onyx; and

                                    (f) The indemnification agreement dated as
               of the date hereof, between Onyx and the


                                       20


<PAGE>   21
               Underwriter has been duly authorized, executed and delivered by
               Onyx.

                                    (g) Assuming the authorization, execution
               and delivery thereof by the Trustee and the Company with respect
               to the Pooling and Servicing Agreement, the Capitalized Interest
               Agreement and by the Company with respect to Purchase Agreement,
               each such agreement constitutes the legal, valid and binding
               agreement of Onyx, enforceable against Onyx in accordance with
               its terms, subject, as to enforcement, to (1) the effect of
               bankruptcy, insolvency, reorganization, moratorium, 
               conservatorship, receivership or other similar laws of general
               application relating to or affecting creditors' rights generally
               (2) the application of general principles of equity (regardless
               of whether such enforceability is considered in a proceeding in
               equity or at law); and (3) the unenforceability under certain
               circumstances of provisions indemnifying a party against 
               liability where such indemnification is contrary to public 
               policy;

                      In rendering such opinion, such counsel may rely as to
        matters of fact, to the extent deemed proper and as stated therein, on
        certificates of responsible officers of Onyx and public officials.

                      In addition, such counsel shall state that they
have participated in conferences with the officers and other representatives of
the Company and Onyx, representatives of the independent public accountants of
the Company and Onyx and representatives of the Underwriter and the Insurer at
which the contents of the Registration Statement and the Prospectus and related
matters were discussed and, although such counsel has not independently verified
and are not passing upon and do not assume any responsibility for, the accuracy,
completeness or fairness of the statements contained in the Registration
Statement and the Prospectus, on the basis of the foregoing, no facts have come
to such counsel's attention that lead them to believe that the Registration
Statement, as of the Effective Date, contained an untrue statement of a material
fact or omitted to state a material fact required to be stated therein or
necessary to make the statements therein not misleading, or that the Prospectus
as of its date or as of the Closing Date


                                       21


<PAGE>   22
contained or contains an untrue statement of a material fact or omitted or omits
to state a material fact necessary in order to make the statements therein, in
the light of the circumstances under which they were made, not misleading (it
being understood that such counsel need make no comment and express no belief
with respect to the financial statements and related notes, schedules and the
other financial and statistical data included in the Registration Statements or
the Prospectus).

                      (vi) The Underwriter shall have received an opinion or
        opinions of O'Melveny & Myers LLP, counsel to the Company, dated the
        Closing Date and satisfactory in form and substance to you, with respect
        the characterization of the transfer of the Contracts by Onyx to the
        Company as a sale and with respect to the perfection of the Trust's
        interests in the Contracts and with respect to the non-consolidation of
        the Company with Onyx in the event of bankruptcy filing with respect to
        Onyx and with respect to certain other matters.

                      (vii) The Underwriter shall have received an opinion of
        O'Melveny & Myers LLP, tax counsel to the Company, dated the Closing
        Date and satisfactory in form and substance to you substantially to the
        effect that:

                                    (a) the Trust created by the Pooling and
               Servicing Agreement will not be classified as an association
               taxable as a corporation for federal income tax purposes and,
               instead, under subpart E, part I of subchapter J of the Internal
               Revenue Code of 1986, as amended, the Trust will be treated as a
               grantor trust, and subject to possible recharacterization of
               certain amounts paid by the Trust to the Servicer, the holders of
               the Certificates will be treated as owning an undivided pro-rata
               interest in the income and corpus attributable to the Trust;

                                    (b) The statements in the Registration
               Statement and Prospectus under the headings "Prospectus Summary
               -- Federal Income Tax Status" and "Certain Federal Income Tax 
               Consequences" to the extent that they constitute matters of law 
               or legal conclusions with respect thereto, have been prepared or
               reviewed by such


                                       22


<PAGE>   23
               counsel and are correct in all material respects; and

                                    (c) For California franchise and income tax
               purposes, the Trust created by the Pooling and Servicing
               Agreement will not be subject to California franchise or income
               taxes, and Certificateholders who are not residents of or
               otherwise subject to tax in California will not be subject to
               California franchise or income taxes with respect to interest or
               other amounts allocable to such Certificateholder as a result of
               such Certificateholder's beneficial ownership of Certificates.

                      (viii) The Underwriter shall have received an opinion,
        dated the Closing Date, of Shaw, Pittman, Potts & Trowbridge, counsel to
        the Insurer, substantially to the effect that:

                                    (a) The Insurer is a corporation validly
               existing, in good standing and licensed to transact the business
               of surety and financial guaranty insurance under the laws of the
               State of New York;

                                    (b) The Insurer has the corporate power to
               execute and deliver, and to take all action required of it under
               the Surety Bond, the Insurance Agreement and the Indemnification
               Agreement;

                                    (c) Except as have already been obtained, no
               authorization, consent, approval, license, formal exemption or
               declaration from, nor any registration or filing with, any court
               or governmental agency or body of the United States of America or
               the State of New York, which if not obtained would affect or
               impair the validity or enforceability of the Surety Bond, the
               Insurance Agreement or the Indemnification Agreement against the
               Insurer, is required in connection with the execution and
               delivery by the Insurer of the Surety Bond, the Insurance
               Agreement or the Indemnification Agreement or in connection with
               the Insurer's performance of its obligations thereunder;


                                       23


<PAGE>   24
                                    (d) The Surety Bond, the Insurance Agreement
               and the Indemnification Agreement have been duly authorized,
               executed and delivered by the Insurer, and the Surety Bond and,
               assuming due authorization, execution and delivery of the
               Insurance Agreement by the parties thereto (other than the
               Insurer), the Insurance Agreement constitute the legally valid
               and binding obligations of the Insurer, enforceable in accordance
               with their respective terms subject, as to enforcement, to (1)
               bankruptcy, reorganization, insolvency, moratorium and other
               similar laws relating to or affecting the enforcement of
               creditors' rights generally, including, without limitation, laws
               relating to fraudulent transfers or conveyances, preferential
               transfers and equitable subordination, presently or from time to
               time in effect and general principles of equity (regardless of
               whether such enforcement is considered in a proceeding in equity
               or at law), as such laws may be applied in any such proceeding
               with respect to the Insurer and (2) the qualification that the
               remedy of specific performance may be subject to equitable
               defenses and to the discretion of the court before which any
               proceedings with respect thereto may be brought; and

                                    (e) The Surety Bond is not required to be
               registered under the Securities Act of 1933, as amended.

               In rendering such opinion, such counsel may rely as to matters of
fact, to the extent deemed proper and as stated therein, on certificates of
responsible officers of the Insurer and public officials. References to the
Prospectus in this paragraph (viii) include any supplements thereto.

                      (ix) The Underwriter shall have received an opinion of
        counsel to the Trustee, dated the Closing Date and satisfactory in form
        and substance to you, substantially to the effect that:

                                    (a) The Trustee is a banking corporation
               validly existing under the laws of the State of New York;


                                       24


<PAGE>   25
                                    (b) The Trustee has the requisite power and
               authority to execute, deliver and perform its obligations under
               the Pooling and Servicing Agreement, and has taken all necessary
               action to authorize the execution, delivery and performance by it
               of the Pooling and Servicing Agreement; and

                                    (c) The Pooling and Servicing Agreement has
               been duly executed and delivered by the Trustee and constitutes a
               legal, valid and binding obligation of the Trustee, enforceable
               against the Trustee in accordance with its terms, except that
               certain of such obligations may be enforceable solely against the
               Trust Estate and except that such enforcement may be limited by
               bankruptcy, insolvency, reorganization, moratorium, liquidation,
               or other similar laws applicable to banking corporations
               affecting the enforcement of creditors' rights generally, and by
               general principles of equity, including, without limitation,
               concepts of materiality, reasonableness, good faith and fair
               dealing (regardless of whether such enforceability is considered
               in a proceeding in equity or at law).

                      (x) The Underwriter shall have received from Skadden,
        Arps, Slate, Meagher & Flom, counsel to the Underwriter, such opinion or
        opinions, dated the Closing Date and satisfactory in form and substance
        to you, with respect to the validity of the Certificates, the
        Registration Statement, the Prospectus and other related matters as the
        Underwriter may require, and the Company shall have furnished to such
        counsel such documents as they reasonably request for the purpose of
        enabling them to pass upon such matters.

                      (xi) The Underwriter shall have received a letter, dated
        the Closing Date, of Coopers & Lybrand which meets the requirements of
        the subsection (i) of this Section 7, except that the specified date
        referred to in such subsection will be a date not more than five days
        prior to the Closing Date for the purposes of this subsection.


                                       25


<PAGE>   26
                      (xii) The Underwriter shall have received evidence
        satisfactory to them that the Certificates have been rated in the
        highest rating category by Moody's Investors Service, Inc. and by
        Standard & Poor's Ratings Service.

                      (xiii) The Underwriter shall have received a certificate,
        dated the Closing Date, of a Vice President or more senior officer of
        the Company in which such officer shall state that, to the best of his
        or her knowledge after reasonable investigation, the representations and
        warranties of the Company in this Agreement are true and correct on and
        as of the Closing Date, that the Company has complied with all
        agreements and satisfied all conditions on its part to be performed or
        satisfied hereunder at or prior to the Closing Date, that the
        representations and warranties of the Company, as Seller, in the Pooling
        and Servicing Agreement and the conditions set forth in Section 2.2(b)
        of the Pooling and Servicing Agreement, are true and correct as of the
        dates specified in the Pooling and Servicing Agreement, that no stop
        order suspending the effectiveness of the Registration Statement has
        been issued and no proceedings for that purpose have been instituted or
        are threatened by the Commission and that, subsequent to the date of the
        Prospectus, there has been no material adverse change in the financial
        position or results of operations of the Company's motor vehicle
        installment loan business except as set forth in or contemplated by the
        Prospectus or as described in such certificate.

                      (xiv) The Underwriter shall have received a certificate,
        dated the Closing Date, of a Vice President or more senior officer of
        Onyx in which such officer shall state that, to the best of his or her
        knowledge after reasonable investigation, the representations and
        warranties of Onyx in the Purchase Agreement are true and correct in all
        material respects on and as of the Closing Date, that Onyx has complied
        with all agreements and satisfied all conditions on its part to be
        performed or satisfied there under at or prior to the Closing Date, that
        the representations and warranties of Onyx, as Servicer, in the Pooling
        and Servicing Agreement are true and correct as of the dates specified
        in the Pooling and Servicing Agreement, there has been no material
        adverse change


                                       26


<PAGE>   27
        in the financial position or results of operations of Onyx's motor
        vehicle installment loan business except as set forth in or contemplated
        by the Prospectus or as described in such certificate.

                      (xv) The Surety Bond shall have been duly authorized,
        executed, issued and delivered by the Insurer; all fees due and payable
        to the Insurer as of the Closing Date shall have been paid in full; and
        the Surety Bond shall conform to the description thereof in the
        Registration Statement and the Prospectus.

                      (xvi) The Underwriter shall have received a Certificate
        from a senior officer of the Insurer to the effect that such officer has
        no reason to believe that the section of the Prospectus captioned
        "Description of the Insurer" or any such amendment thereof or
        supplement thereto as of its Effective Date or date of issuance, as the
        case may be, contained any untrue statement of a material fact or
        omitted to state any material fact required to be stated therein or
        necessary to make the statements therein, in light of the circumstances
        under which they were made, not misleading.

               The Company will furnish or cause to be furnished to the
Underwriter such number of conformed copies of such opinions, certificates,
letters and documents as the Underwriter reasonably requests.

               8. Indemnification.

                      (i) The Company will indemnify and hold harmless the
        Underwriter and each person, if any, who controls the Underwriter with
        the meaning of Section 15 of the Act against any losses, claims, dam
        ages or liabilities, joint or several, to which the Underwriter may
        become subject, under the Act or otherwise, insofar as such losses,
        claims, damages or liabilities (or actions in respect thereof) arise out
        of, or are based upon, any untrue statement or alleged untrue statement
        of any material fact contained in the Registration Statement, the
        Prospectus, or any amendment or supplement thereto, or arise out of, or
        are based upon, the omission or alleged omission to state therein a
        material fact required to be stated therein or necessary to make the
        statements therein not


                                       27


<PAGE>   28
        misleading; and will reimburse the Underwriter for any legal or other
        expenses reasonably incurred by the Underwriter in connection with
        investigating or defending any such action or claim; provided, however,
        that the Company shall not be liable in any such case to the extent that
        any such loss, claim, damage or liability arises out of, or is based
        upon, an untrue statement or alleged untrue statement or omission or
        alleged omission made in the Registration Statement or the Prospectus or
        any such amendment or supplement in reliance upon and in conformity with
        written information furnished to the Company by the Underwriter
        expressly for use therein, or (y) contained in any ABS Term Sheet to the
        extent set forth in subsection (ii) of this Section 8; provided,
        further, that the Company shall not be liable under this subsection (i)
        to the extent that such losses, claims, damages or liabilities arose
        out of or are based upon an untrue statement or omission made in any
        preliminary prospectus that is corrected in the final Prospectus (or any
        amendment or supplement thereto), and the Company has previously
        furnished copies thereof in sufficient quantity to the Underwriter, if
        the person asserting such loss, claim, damage or liability was not given
        the final Prospectus (or any amendment or supplement thereto) on or
        prior to the confirmation of the sale of the Certificates.

                      (ii) The Underwriter severally agrees to indemnify and
        hold harmless the Company, its directors, each of its officers or
        agents who signed the Registration Statement, and each person, if any,
        who controls the Company within the meaning of Section 15 of the Act
        against any and all loss, liability, claim, damage and expense described
        in the indemnity contained in subsection (i) of this Section 8, as
        incurred, but only with respect to untrue statements or omissions, or
        alleged untrue statements or omissions, (A) made in the Registration
        Statement (or any amendment thereto) or any preliminary prospectus or
        the Prospectus (or any amendment or supple-


                                       28


 
<PAGE>   29
        ment thereto) in reliance upon and in conformity with written
        information furnished to the Company by the Underwriter through Merrill
        Lynch, Pierce, Fenner & Smith Incorporated expressly for use in the
        Registration Statement (or any amendment thereto) or such preliminary
        prospectus or the Prospectus (or any amendment or supplement thereto)
        or (B) made in the ABS Term Sheets distributed by the Underwriter and
        filed as a post-effective amendment to the Registration Statement or the
        Prospectus as a result of any filing pursuant to Section 5(x); provided
        however that the Underwriter will not be liable in any such case to the
        extent that any such loss, claim or damage or liability arises out of,
        or is based upon, an untrue statement or omission made in the ABS Term
        Sheet or any supplement thereto in reliance upon and in conformity with
        (x) information furnished to the Underwriter by the Company or (y)
        information contained in the Registration Statement or any preliminary
        prospectus or the Prospectus other than information described in clause
        (A) above.

                (iii) Each indemnified party shall give prompt notice to the
        indemnifying party of any action commenced against the indemnified party
        in respect of which indemnity may be sought hereunder, but failure to so
        notify an indemnifying party shall not relieve such indemnifying party
        from any liability which it may have hereunder or otherwise than on
        account of this indemnity agreement except and to the extent of any
        prejudice to such indemnifying party arising from such failure to
        provide such notice. In case any such action shall be brought against an
        indemnified party and it shall have notified the indemnifying party of
        the commencement thereof, the indemnifying party shall be entitled to
        participate therein and, to the extent that it shall wish, to assume the
        defense thereof, with counsel, satisfactory to such indemnified party
        (who shall not, except with the consent of the indemnified party, be
        counsel to the indemnifying party with respect to such action), and it
        being understood that the indemnifying party shall not, in connection
        with any one such action or separate but substantially similar or
        related actions in the same jurisdiction arising out of the same general
        allegations or circumstances, be liable for the reasonable fees and
        expenses of more than one separate firm of attorneys, and, after notice
        from the indemnifying party to the indemnified party of its election so
        to assume the defense thereof, the indemnifying party shall not be
        liable to the indemnified party under subsections (i) or (ii) of this
        Section 8 for any legal expenses of other counsel or any other expenses,
        in each case subsequently incurred by the


                                       29


<PAGE>   30

        indemnified party, in connection with the defense thereof other than
        reasonable costs of investigation.

               9. Contribution. In order to provide for just and equitable
contribution in circumstances in which the indemnity agreement provided for in
Section 8 is for any reason held to be unavailable other than in accordance with
its terms, then each indemnifying party shall contribute to the amount paid or
payable by such indemnifying party as a result of the losses, claims, damages or
liabilities referred to in 8(i) and 8(ii) above (i) in such proportion as is
appropriate to reflect the relative benefits received by the Company on the one
hand and the Underwriter on the other from the offering of the Certificates or
(ii) if the allocation provided by clause (i) above is not permitted by
applicable law, in such proportion as is appropriate to reflect not only the
relative benefits referred to in clause (i) above but also the relative fault of
the Company on the one hand and of the Underwriter on the other in connection
with the statements or omissions which resulted in such losses, claims, damages
or liabilities as well as any other relevant equitable considerations. The
relative benefits received by the Company on the one hand and the Underwriter on
the other shall be deemed to be in the same proportion as the total net proceeds
from the offering (before deducting expenses) received by the Company bear to
the total underwriting discounts and commissions received by the Underwriter.
The relative fault shall be determined by reference to, among other things,
whether the untrue or alleged untrue statement of a material fact or the
omission or alleged omission to state a material fact relates to information
supplied by the Company or by the Underwriter and the parties' relative intent,
knowledge, access to information and opportunity to correct or prevent such
untrue statement or omission. The amount paid by an indemnified party as a
result of the losses, claims, damages or liabilities referred to in the first
sentence of this Section 9 shall be deemed to include any legal or other
expenses reasonably incurred by such indemnified party in connection with
investigating or defending any action or claim which is the subject of this
Section 9. Notwithstanding the provisions of this Section 9, the Underwriter
shall not be required to contribute any amount in excess of the underwriting
discount or commission applicable to the Certificates purchased by it hereunder.
The Company and the Underwriter agrees that it would not be just and equitable
if contribution pursuant to this Section 9 were determined by pro rata 
allocation or by any other method of allocation which does not take account of 
the equitable considerations referred to above in this Section 9. No person
guilty of fraudulent misrepresenta-


                                       30


<PAGE>   31

tion (within the meaning of Section 11(f) of the Act) shall be entitled to
contribution from any person who was not guilty of such fraudulent
misrepresentation.

               10. Termination. The Underwriter may terminate this Agreement
immediately upon notice to the Company, if at any time, prior to the Closing
Date, there has occurred: (a) any change, or any development involving a
prospective change, in or affecting particularly the business or properties of
the Company or Onyx which, in the reasonable judgment of the Underwriter,
materially impairs the investment quality of the Certificates; (b) any
suspension or material limitation of trading in securities generally on the New
York Stock Exchange, or any setting of minimum prices for trading on such
exchange, or any suspension of trading of any securities of the Company or of
Onyx on any exchange or in the over-the-counter market by such exchange or
over-the-counter market or by the Commission; (c) any banking moratorium
declared by Federal, New York or California authorities; or (d) any outbreak or
material escalation of major hostilities or any other substantial national or
international calamity or emergency if, in the reasonable judgment of the
Underwriter, the effect of any such outbreak, escalation, calamity or emergency
on the United States financial markets makes it impracticable or inadvisable to
proceed with completion of the sale of and any payment for the Certificates.

               11. Survival of Certain Representations and Obligations. The
respective indemnities, agreements, representations, warranties and other
statements of the Company or its officers and of the Underwriter set forth in or
made pursuant to this Agreement will remain in full force and effect, regardless
of any investigation, or statement as to the results thereof, made by or on
behalf of the Underwriter, the Company or any of their respective
representatives, officers or directors or any controlling person, and will
survive delivery of and payment for the Certificates. If for any reason the
purchase of the Certificates by the Underwriter is not consummated, the Company
shall remain responsible for the expenses to be paid or reimbursed by it
pursuant to Section 6 and the respective obligations of the Company and the
Underwriter pursuant to Sections 6, 8 and 9 shall remain in effect. If the
purchase of the Certificates by the Underwriter is not consummated for any
reason other than solely because of the occurrence of any event specified in
clauses (b), (c) or (d) of Section 7(iii) or Section 10, the Company will
reimburse the Underwriter for all out-of-pocket expenses (including fees and
disbursements of counsel) reason-


                                       31


<PAGE>   32
ably incurred by it in connection with the offering of the Certificates.

               12. Notices. All communications hereunder will be in writing and,
if sent to the Underwriter, will be mailed, delivered or telegraphed and
confirmed to the Underwriter at c/o Merrill Lynch & Co., World Financial Center,
Attention: Managing Director, Asset-Backed Securities Department, or to such
other address as the Underwriter may designate in writing to the Company, or if
sent to the Company, will be mailed, delivered or telegraphed and confirmed to
the Company at Onyx Acceptance Financial Corporation, 8001 Irvine Center Drive,
5th Floor, Irvine CA 92618, Attention: Regan E. Kelly, Esq., Executive Vice
President.

               13. Successors. This Agreement will inure to the benefit of, and
be binding upon, the parties hereto and their respective successors. Nothing
expressed or mentioned in this Agreement is intended or shall be construed to
give any person, firm or corporation, other than the parties hereto and their
respective successors and the controlling persons and officers and directors
referred to in Sections 8 and 9 and their heirs and legal representatives, any
legal or equitable right, remedy or claim under or in respect of this Agreement
or any provision herein contained. This Agreement and all conditions and
provisions hereof are intended to be for the sole and exclusive benefit of the
parties hereto and their respective successors, and said controlling persons and
officers and directors and their heirs and legal representatives, and for the
benefit of no other person, firm or corporation. No purchaser of Certificates
from the Underwriter shall be deemed to be a successor by reason merely of such
purchase.

               14. Counterparts. This Agreement may be executed in any number of
counterparts, each of which shall be deemed to be an original, but all such
counterparts shall together constitute one and the same Agreement.

               15.  APPLICABLE LAW.  THIS AGREEMENT SHALL BE GOVERNED
BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF
NEW YORK.

               16. Severability of Provisions. Any covenant, provisions,
agreement or term of this Agreement that is prohibited or is held to be void or
unenforceable in any jurisdiction shall, as to such jurisdiction, be
ineffective to the


                                       32


<PAGE>   33
extent of such prohibition or unenforceability without invalidating the
remaining provisions hereof.

               17. Entire Agreement. This Agreement constitutes the entire
agreement and understanding of the parties hereto with respect to the matters
and transactions contemplated hereby and supersedes all prior agreements and
understandings whatsoever relating to such matters and transactions.

               18. Amendment. Neither this Agreement nor any term hereof may be
changed, waived, discharged or terminated orally, but only by an instrument in
writing signed by the party against whom enforcement of the change, waiver,
discharge or termination is sought.

               19.  Heading.  The headings in this Agreement are for
the purposes of reference only and shall not limit or otherwise
affect the meaning hereof.


                                       33


<PAGE>   34
               If the foregoing is in accordance with your understanding of our
agreement, kindly sign and return to us the enclosed duplicate thereof,
whereupon it will become a binding agreement among the undersigned in accordance
with its terms.

                                    Very truly yours,

                                    ONYX ACCEPTANCE FINANCIAL
                                      CORPORATION



                                    By:
                                       -------------------------------
                                        Name:
                                        Title:


The foregoing Underwriting Agreement 
is hereby confirmed and accepted as 
of the date first above written.

Merrill Lynch, Pierce, Fenner & Smith
            Incorporated

- -----------------------------------


                                       34


<PAGE>   35
                                                                       Exhibit A


               The information herein has been provided solely by Merrill Lynch,
Pierce, Fenner & Smith Incorporated ("Merrill Lynch"). Neither Merrill Lynch,
the Issuer of the securities nor any of its affiliates make any representation
as to the accuracy or completeness of the information herein. The information
herein is preliminary, and will be superseded by the final prospectus and by any
other information subsequently filed with the Securities and Exchange
Commission.

               The information contained herein will be superseded by the
description of the collateral pool contained in the final prospectus relating to
the securities.


                                       35



<PAGE>   1
                                                                     EXHIBIT 4.1
                                         FORM OF POOLING AND SERVICING AGREEMENT



                     ONYX ACCEPTANCE FINANCIAL CORPORATION

                                     Seller

                          ONYX ACCEPTANCE CORPORATION

                                    Servicer

                                      and

                             BANKERS TRUST COMPANY

                                    Trustee



                        POOLING AND SERVICING AGREEMENT

                          Dated as of December 1, 1997


                      ONYX ACCEPTANCE GRANTOR TRUST 1997-4
<PAGE>   2
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                          Page
                                                                                                          ----
<S>                  <C>                                                                                  <C>
                                                                   ARTICLE I
                                                                   Definitions
                                                                   -----------

SECTION 1.1.         Definitions    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    1
SECTION 1.2.         Usage of Terms   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   18
SECTION 1.3.         Section References   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   18
SECTION 1.4.         Calculations   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   18
SECTION 1.5.         Accounting Terms   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   18

                                                                  ARTICLE II
                                    Conveyance of the Contracts; Representation and Warranties of the Seller
                                    ------------------------------------------------------------------------

SECTION 2.1.         Sale and Assignment of Contracts   . . . . . . . . . . . . . . . . . . . . . . . . .   18
SECTION 2.2.         Representations and Warranties   . . . . . . . . . . . . . . . . . . . . . . . . . .   23
SECTION 2.3.         Repurchase of Certain Contracts    . . . . . . . . . . . . . . . . . . . . . . . . .   32
SECTION 2.4.         Duties and Appointment of Custodian    . . . . . . . . . . . . . . . . . . . . . . .   33
SECTION 2.5.         Duties of Servicer Relating to the Contracts   . . . . . . . . . . . . . . . . . . .   34
SECTION 2.6.         Instructions; Authority to Act   . . . . . . . . . . . . . . . . . . . . . . . . . .   35
SECTION 2.7.         Indemnification    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   36
SECTION 2.8.         Effective Period and Termination   . . . . . . . . . . . . . . . . . . . . . . . . .   36
SECTION 2.9.         Nonpetition Covenant   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   37
SECTION 2.10.        Collecting Title Documents Not Delivered at the Closing Date
                       or Subsequent Closing Date   . . . . . . . . . . . . . . . . . . . . . . . . . . .   37

                                                                  ARTICLE III
                                                    Administration and Servicing of Contracts
                                                    -----------------------------------------

SECTION 3.1.         Duties of Servicer   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   38
SECTION 3.2.         Collection of Contract Payments    . . . . . . . . . . . . . . . . . . . . . . . . .   40
SECTION 3.3.         Realization Upon Contracts   . . . . . . . . . . . . . . . . . . . . . . . . . . . .   40
SECTION 3.4.         Insurance    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   40
SECTION 3.5.         Maintenance of Security Interests in Financed Vehicles   . . . . . . . . . . . . . .   40
SECTION 3.6.         Covenants, Representations and Warranties of Servicer    . . . . . . . . . . . . . .   41
SECTION 3.7.         Purchase of Contracts Upon Breach of Covenant    . . . . . . . . . . . . . . . . . .   43
SECTION 3.8.         Servicing Compensation   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   43
SECTION 3.9.         Reporting by the Servicer    . . . . . . . . . . . . . . . . . . . . . . . . . . . .   43
SECTION 3.10.        Annual Statement as to Compliance    . . . . . . . . . . . . . . . . . . . . . . . .   46
SECTION 3.11.        Annual Independent Certified Public Accountant's Report    . . . . . . . . . . . . .   46
SECTION 3.12.        Access to Certain Documentation and Information
                       Regarding Contracts  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   47
</TABLE>





                                       i

<PAGE>   3
<TABLE>
<S>                  <C>                                                                                   <C>
SECTION 3.13.        Fidelity Bond    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   47
SECTION 3.14.        Indemnification; Third Party Claims    . . . . . . . . . . . . . . . . . . . . . . .   47
SECTION 3.15.        Reports to Certificateholders and the Rating Agencies  . . . . . . . . . . . . . . .   47

                                                                  ARTICLE IV
                                                 Distributions; Statements to Certificateholders
                                                 -----------------------------------------------

SECTION 4.1.         Accounts
SECTION 4.2.         Collections; Transfer to Payahead Account; Realization
                       Upon Surety Bond; Net Deposit    . . . . . . . . . . . . . . . . . . . . . . . . .   48
SECTION 4.3.         Distributions    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   49
SECTION 4.4.         Remittance Of Repurchase Amount    . . . . . . . . . . . . . . . . . . . . . . . . .   50
SECTION 4.5.         Statements to Certificateholders   . . . . . . . . . . . . . . . . . . . . . . . . .   51
SECTION 4.6.         Capitalized Interest Account   . . . . . . . . . . . . . . . . . . . . . . . . . . .   52
SECTION 4.7.         Funding Account  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   53

                                                                   ARTICLE V
                                                                The Certificates
                                                                ----------------

SECTION 5.1.         The Certificates   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   54
SECTION 5.2.         Execution, Authentication and Delivery of Certificates   . . . . . . . . . . . . . .   54
SECTION 5.3.         Registration of Transfer and Exchange of Certificates    . . . . . . . . . . . . . .   55
SECTION 5.4.         Mutilated, Destroyed, Lost or Stolen Certificates    . . . . . . . . . . . . . . . .   55
SECTION 5.5.         Persons Deemed Owners    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   56
SECTION 5.6.         Access to List of Certificateholders' Names and Addresses    . . . . . . . . . . . .   56
SECTION 5.7.         Maintenance of Office or Agency    . . . . . . . . . . . . . . . . . . . . . . . . .   56
SECTION 5.8.         Book-Entry Certificates    . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   56
SECTION 5.9.         Notices to Clearing Agency   . . . . . . . . . . . . . . . . . . . . . . . . . . . .   57
SECTION 5.10.        Definitive Certificates    . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   57
SECTION 5.11.        Appointment of Paying Agent    . . . . . . . . . . . . . . . . . . . . . . . . . . .   58
SECTION 5.12.        Authenticating Agent   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   59
SECTION 5.13.        Actions of Certificateholders  . . . . . . . . . . . . . . . . . . . . . . . . . . .   60

                                                                  ARTICLE VI
                                                                  The Seller
                                                                  ----------

SECTION 6.1.         Liability of Seller; Indemnities   . . . . . . . . . . . . . . . . . . . . . . . . .   60 
SECTION 6.2.         Merger or Consolidation of, or Assumption of the
                       Obligations of, Seller   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   61
SECTION 6.3.         Limitation on Liability of Seller and Others   . . . . . . . . . . . . . . . . . . .   61
SECTION 6.4.         Seller Not to Resign   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   61
SECTION 6.5.         Seller May Own Certificates  . . . . . . . . . . . . . . . . . . . . . . . . . . . .   61
</TABLE>




                                       ii

<PAGE>   4
<TABLE>
<S>                  <C>                                                                                  <C>
                                                                  ARTICLE VII
                                                                  The Servicer
                                                                  ------------

SECTION 7.1.         Liability of Servicer; Indemnities   . . . . . . . . . . . . . . . . . . . . . . . .   62
SECTION 7.2.         Corporate Existence; Status as Servicer; Merger    . . . . . . . . . . . . . . . . .   63
SECTION 7.3.         Performance of Obligations   . . . . . . . . . . . . . . . . . . . . . . . . . . . .   63
SECTION 7.4.         The Servicer Not to Resign; Assignment   . . . . . . . . . . . . . . . . . . . . . .   63
SECTION 7.5.         Limitation on Liability of Servicer and Others   . . . . . . . . . . . . . . . . . .   64

                                                                  ARTICLE VIII
                                                                     Default
                                                                     -------

SECTION 8.1.         Events of Default    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   64
SECTION 8.2.         Notification to Certificateholders   . . . . . . . . . . . . . . . . . . . . . . . .   66
SECTION 8.3.         Waiver of Past Defaults    . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   67
SECTION 8.4.         Insurer Direction of Insolvency Proceedings  . . . . . . . . . . . . . . . . . . . .   67

                                                                   ARTICLE IX
                                                                   The Trustee
                                                                   -----------

SECTION 9.1.         No Power to Engage in Business or to Vary Investments    . . . . . . . . . . . . . .   68
SECTION 9.2.         Duties of Trustee    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   68
SECTION 9.3.         Trustee's Assignment of Purchased Contracts    . . . . . . . . . . . . . . . . . . .   70
SECTION 9.4.         Certain Matters Affecting the Trustee    . . . . . . . . . . . . . . . . . . . . . .   71
SECTION 9.5.         Trustee Not Liable for Certificates or Contracts   . . . . . . . . . . . . . . . . .   72
SECTION 9.6.         Trustee May Own Certificates   . . . . . . . . . . . . . . . . . . . . . . . . . . .   73
SECTION 9.7.         Trustee's Fees and Expenses    . . . . . . . . . . . . . . . . . . . . . . . . . . .   73
SECTION 9.8.         Indemnity of Trustee   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   73
SECTION 9.9.         Eligibility Requirements for Trustee   . . . . . . . . . . . . . . . . . . . . . . .   74
SECTION 9.10.        Resignation or Removal of Trustee    . . . . . . . . . . . . . . . . . . . . . . . .   74
SECTION 9.11.        Successor Trustee    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   75
SECTION 9.12.        Merger or Consolidation of Trustee   . . . . . . . . . . . . . . . . . . . . . . . .   75
SECTION 9.13.        Appointment of Co-Trustee or Separate Trustee    . . . . . . . . . . . . . . . . . .   75
SECTION 9.14.        Representations and Warranties of Trustee    . . . . . . . . . . . . . . . . . . . .   77
SECTION 9.15.        Tax Returns    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   77
SECTION 9.16.        Trustee May Enforce Claims Without Possession of Certificates    . . . . . . . . . .   77
SECTION 9.17.        Suits for Enforcement    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   78
SECTION 9.18.        Maintenance of Office or Agency  . . . . . . . . . . . . . . . . . . . . . . . . . .   78

                                                                    ARTICLE X
                                                                   Termination
                                                                   -----------

SECTION 10.1.        Termination of the Trust   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   78
SECTION 10.2.        Optional Purchase of All Contracts   . . . . . . . . . . . . . . . . . . . . . . . .   79
</TABLE>




                                      iii






<PAGE>   5
<TABLE>
<S>                  <C>                                                                                   <C>
                                                                  ARTICLE XI
                                                            Miscellaneous Provisions
                                                            ------------------------

SECTION 11.1.        Amendment    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   79
SECTION 11.2.        Protection of Title to Trust   . . . . . . . . . . . . . . . . . . . . . . . . . . .   80
SECTION 11.3.        Limitation on Rights of Certificateholders   . . . . . . . . . . . . . . . . . . . .   82
SECTION 11.4.        Governing Law    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   83
SECTION 11.5.        Notices    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   83
SECTION 11.6.        Severability of Provisions   . . . . . . . . . . . . . . . . . . . . . . . . . . . .   83
SECTION 11.7.        Assignment   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   83
SECTION 11.8.        Certificates Nonassessable and Fully Paid    . . . . . . . . . . . . . . . . . . . .   84
SECTION 11.9.        Third Party Beneficiaries    . . . . . . . . . . . . . . . . . . . . . . . . . . . .   84
SECTION 11.10.       Insurer Default or Insolvency    . . . . . . . . . . . . . . . . . . . . . . . . . .   84
SECTION 11.11.       Tax Matters  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   84
</TABLE>

                                    EXHIBITS

         Exhibit A -      Form of Appointment of Custodian
         Exhibit B -      Form of Certificate
         Exhibit C -      Form of Surety Bond
         Exhibit D -      Form of Capitalized Interest Agreement
         Exhibit E1 -     Form of Transfer Certificate
         Exhibit E2 -     Form of Subsequent Closing Date Certificate

         Schedule I       Schedule of Contracts
         Schedule II      Schedule of Accounts




                                       iv

<PAGE>   6
         This Pooling and Servicing Agreement, dated as of December 1, 1997, is
made with respect to the formation of the Onyx Acceptance Grantor Trust,
1997-4, by and among Onyx Acceptance Financial Corporation, a Delaware
corporation, as originator of the Trust and Seller, Onyx Acceptance
Corporation, a Delaware corporation, as Servicer, and Bankers Trust Company, a
New York banking corporation, as Trustee.

                              W I T N E S S E T H:

         In consideration of the mutual agreements herein contained, and of
other good and valuable consideration the receipt and sufficiency of which are
hereby acknowledged, the parties hereto agree as follows:

                                   ARTICLE I

                                  Definitions

         SECTION 1.1. Definitions. Whenever used in the Agreement, the
following words and phrases, unless the context otherwise requires, shall have
the following meanings:

         "Accounts" have the meaning specified in Section 4.1.  The location
and account numbers of the Accounts as of the Closing Date are set forth on
Schedule II.

         "Affiliate" of any specified Person means any other Person controlling
or controlled by or under common control with such specified Person. For the
purpose of this definition, "control" when used with respect to any specified
Person means the power to direct the management and policies of such Person,
directly or indirectly, whether through the ownership of voting  securities, by
contract or otherwise; and the terms "controlling" or "controlled" have
meanings correlative to the foregoing.

         "Aggregate Scheduled Balance" means with respect to the Contracts, the
sum of the Scheduled Balances of each Contracts.

         "Aggregate Scheduled Balance Decline" means with respect to any
Distribution Date, the sum of (x) the amount by which the Aggregate Scheduled
Balance of such Contracts as of the beginning of the related Collection Period
exceeds the Aggregate Scheduled Balances of such Contracts as of the end of the
related Collection Period (excluding any Subsequent Contracts added during the
related Collection Period) and (y) the amount by which the Aggregate Scheduled
Balance of the Subsequent Contracts (determined as of each related Subsequent
Transfer Date) transferred to the Trust during the related Collection Period
exceeds the Aggregate Scheduled Balance of such Contracts as of the end of the
related Collection Period.

         "Agreement" means this Pooling and Servicing Agreement and all
supplements, modifications and amendments hereto.



                                       1


<PAGE>   7
         "Amount Available" means with respect to any Distribution Date, the
sum of (i) the Collection Account Amount Available for such Distribution Date,
and (ii) the Policy Claim Amount actually received by the Trustee for such
Distribution Date.

         "Appointment of Custodian" means the letter agreement between the
Trustee and the Servicer substantially in the form attached hereto as Exhibit
A.

         "APR" means the annual percentage rate used to determine the total
interest expected to be charged over the term of a Contract as of its
inception, as shown on such Contract.

         "Authenticating Agent" shall have the meaning specified in Section
5.12.

         "Bank" means the institution designated as such pursuant to the
Insurance Agreement, or a successor Person pursuant to the Insurance Agreement,
and thereafter "Bank" shall mean such successor Person.

         "Blanket Insurance Policy" means the Lender's Blanket Consumer Loan
Insurance Policy covering losses with respect to the Contracts, which policy
has been issued by United Financial Casualty Company and the Servicer's rights
therein with respect to the Contracts have been validly assigned to the Trustee
acting on behalf of the Trust.

         "Book-Entry Certificates" means beneficial interests in the
Certificates described in Section 5.8, the ownership and transfers of which
shall be made through book entries by a Clearing Agency as described in Section
5.8.

         "Business Day" means any day other than a Saturday, a Sunday or other
day on which commercial banking institutions or savings associations in
California or New York are authorized or obligated by law to be closed.

         "Capitalized Interest Account" means the segregated trust account
established as the Capitalized Interest Account by Onyx to be maintained for
the benefit of the Certificateholders and the Insurer in the name of the
Capitalized Interest Agent pursuant to Section 4.6.

         "Capitalized Interest Agent" means Bankers Trust Company, in its
capacity as agent for the benefit of the Certificateholders and the Insurer
with respect to the Capitalized Interest Account as set forth in Section 4.6.

         "Capitalized Interest Agreement" means the Capitalized Interest
Agreement dated as of the date hereof between Onyx Acceptance Financial
Corporation and Onyx Acceptance Corporation, as such agreement may be modified,
supplemented or amended from time to time.  The form of the Capitalized
Interest Agreement is attached hereto as Exhibit D.

         "Capitalized Interest Amount" means, with respect to any Collection
Period, an amount equal to the difference between (a) one month's interest on
the Prefunded Amount on deposit in the Prefunded Account as of the first day of
such Collection Period at the Pass-Through Rate and





                                       2
<PAGE>   8
(b) the earnings received by the Trustee during the related Collection Period
from investment of the Prefunded Amount on deposit in the Prefunding Account.

         "Capitalized Interest Release Amount" means, (a) with respect to any
Subsequent Closing Date, (i) the Initial Maximum Negative Carry Amount minus
(ii) the sum of (x) the aggregate Capitalized Interest Release Amounts released
on all prior Subsequent Closing Dates and (y) the maximum Negative Carry Amount
which could become owing during the remainder of the Funding Period assuming
that no additional Subsequent Contracts are conveyed to the Trust and that the
Prefunded Amount as of such Subsequent Closing Date earns interest at a rate
equal to [o]% per annum and (b) with respect to the Mandatory Partial
Prepayment, any amount remaining on deposit in the Capitalized Interest Account
relating to the Negative Carry Amount after the payment on the Mandatory
Partial Prepayment Date to the Certificateholders of the Prepayment Amount.

         "Certificate" means a certificate executed and authenticated by the
Trustee substantially in the form of Exhibit B hereto.

         "Certificate Distribution Amount" means, with respect to any
Distribution Date, the sum of the Interest Distribution for such Distribution
Date and the Principal Distribution for such Distribution Date, plus, but only
in the case of any Distribution Date in respect of which the Servicer purchases
the corpus of the Trust pursuant to Section 10.2, the amount of the
Pool/Prefunding Balance for such Distribution Date (after giving effect to the
Principal Distribution for such Distribution Date).

         "Certificate Owner" means, with respect to a Book-Entry Certificate,
the Person who is the owner of such Book-Entry Certificate, as reflected on the
books of the Clearing Agency, or on the books of a direct or indirect Clearing
Agency Participant.

         "Certificate Register" and "Certificate Registrar" mean the register
maintained and the registrar appointed pursuant to Section 5.3.

         "Certificateholder" or "Holder" means the Person in whose name the
respective Certificate shall be registered in the Certificate Register, except
that, solely for the purposes of giving any notices, consents or waivers
pursuant to this Agreement, the interest evidenced by any Certificate
registered in the name of the Seller or the Servicer, or any Person
controlling, controlled by, or under common control with the Seller or the
Servicer, shall not be taken into account in determining whether the requisite
percentage necessary to effect any such consent shall have been obtained.

         "Clearing Account" means Account No. 4159359173 in the name of the
Seller maintained at Wells Fargo Bank, N.A.

         "Clearing Agency" means an organization registered as a "clearing
agency" pursuant to Section 17A of the United States Securities Exchange Act of
1934, as amended. The initial Clearing Agency shall be The Depository Trust
Company.





                                       3
<PAGE>   9
         "Clearing Agency Participant" means a broker, dealer, bank, other
financial institution or other Person for whom from time to time a Clearing
Agency effects book-entry transfers of securities deposited with the Clearing
Agency.

         "Closing Date" means December o, 1997.

         "Code" means the Internal Revenue Code of 1986, as amended.

         "Collection Account" means the account established and maintained as
the Collection Account pursuant to Section 4.1.

         "Collection Account Amount Available" means, with respect to any
Distribution Date and the related Collection Period, the sum of (i) all
payments of Monthly P&I, all partial prepayments, all Full Prepayments, Net
Liquidation Proceeds and Net Insurance Proceeds, collected with respect to the
Contracts during such Collection Period, less partial prepayments of Rule of
78's Contracts which are deposited in the Payahead Account pursuant to Section
4.2(a), (ii) amounts withdrawn from the Payahead Account pursuant to Section
4.1(b) and deposited in the Collection Account in such Collection Period, (iii)
the aggregate Repurchase Amount for Repurchased Contracts deposited in or
credited to the Collection Account pursuant to Section 4.4 on the day preceding
the Servicer Report Date next preceding such Distribution Date, (iv) the
Capitalized Interest Amount with respect to such Collection Period, (v) the
earnings received by the Trustee during the related Collection Period from
investment of the Prefunded Amount on deposit in the Prefunding Account and
deposited into the Collection Account pursuant to Section 4.1(d); and (vi) on
the Final Funding Period Distribution Date only, the remaining portion of the
Prefunded Amount deposited pursuant to Section 4.7(c).

         "Collection Period" means, with respect to any Distribution Date, the
calendar month preceding the month in which such Distribution Date occurs;
provided that for Liquidated Contracts the Collection Period will be the period
from but excluding the sixth Business Day preceding the immediately preceding
Distribution Date to and including the sixth Business Day preceding such
Distribution Date; provided, further, however, that with respect to the first
Distribution Date the "Collection Period" for Liquidated Contracts shall be the
period from and including the beginning of the preceding calendar month to and
including the sixth Business Day preceding such first Distribution Date.

         "Contract" means each retail installment sales contract and security
agreement or installment loan agreement and security agreement and all proceeds
thereof and payments thereunder, which agreement has been executed by an
Obligor and pursuant to which such Obligor purchased or financed the Financed
Vehicle described therein, agreed to pay the deferred purchase price (i.e., the
purchase price net of any downpayment) or amount borrowed, together with
interest, as therein provided in connection with such purchase or loan, granted
a security interest in such Financed Vehicle, and undertook to perform certain
other obligations as specified in such contract. Each Contract shall have been
(i) either originated by Onyx or shall have been originated by a Dealer and
assigned to Onyx in accordance with the assignment provisions set





                                       4
<PAGE>   10
forth therein, and (ii) subsequently conveyed to the Trust pursuant to this
Agreement. As used herein, "Contracts" means both the Initial Contracts and all
Subsequent Contracts.

         "Contract Documents" means, with respect to each Contract, (a) the
Contract and the original credit application fully executed by the Obligor
thereunder; (b) either (i) the original Title Document for the related Financed
Vehicle or a duplicate copy thereof issued or certified by the Registrar of
Titles which issued the original thereof (or, with respect to Financed Vehicles
registered in the State of California, evidence of the electronic Title
Document), together with evidence of perfection of the security interest in the
related Financed Vehicle granted by such Contract, as determined by the
Servicer to be permitted or required to perfect such security interest under
the laws of the applicable jurisdiction, or (ii) written evidence that the
Title Document for such Financed Vehicle showing Onyx as first lienholder has
been applied for; and (c) any agreement(s) modifying the Contract (including,
without limitation, any extension agreement(s)).

         "Contract Files" means the Contract Documents and all other papers and
computerized records customarily kept by the Servicer in connection with
servicing contracts and loans comparable to the Contracts.

         "Contract Number" means, with respect to any Contract included in the
Trust, the number assigned to such Contract by the Servicer, which number is
set forth in the related Schedule of Contracts.

         "Contract Rate" means (i) with respect to a Rule of 78's Contract, the
Recomputed Yield for such Contract used in accordance with the definition of
the term "Scheduled Balance" to derive the Scheduled Balances from time to time
of such Rule of 78's Contract, and (ii) with respect to a Simple Interest
Contract, the APR.

         "Corporate Trust Office" means the principal corporate trust office of
the Trustee at which at any particular time its corporate trust business shall
be administered, which office at the time of the execution of this Agreement is
located at Four Albany Street, New York, New York 10006, Attn.: Corporate Trust
and Agency Group, Structured Finance Team, or at such other address as the
Trustee may designate from time to time by notice to the Certificateholders,
the Servicer and the Insurer.

         "Custodian" means initially, the Trustee, and thereafter any custodian
that may be appointed by the Trustee pursuant to Section 2.4(b).

         "Cut-Off Date" means the opening of business on December 1, 1997.

         "Cut-Off Scheduled Balance" means the principal balances of each
Contract as of the Cut-Off Date.

         "Dealer" means the seller of a Financed Vehicle, which seller
originated and assigned the related Contract.





                                       5
<PAGE>   11
         "Default" means any occurrence which with the giving of notice or the
lapse of time or both would become an Event of Default.

         "Defaulted Contract" means, with respect to any Collection Period, a
Contract (i) which is, at the end of such Collection Period, delinquent in an
aggregate amount equal to two monthly payments of Monthly P&I or (ii) with
respect to which the related Financed Vehicle has been repossessed or
repossession efforts have been commenced.

         "Deficiency Notice" means, with respect to any Distribution Date, the
notice for payment under the Surety Bond delivered by the Trustee to the
Insurer and Bank pursuant to Section 4.2(c).

         "Definitive Certificates" has the meaning set forth in Section 5.8.

         "Depository Agreement" shall mean the agreement among the Seller, the
Trustee and the initial Clearing Agency, in the form currently used by the
Clearing Agency.

         "Distribution Account" means the segregated trust account established
by the Trustee denominated "Distribution Account -- GT 1997-4, Bankers Trust
Company, Trustee."

         "Distribution Date" means the 15th day of each month or if such date
shall not be a Business Day, the following Business Day.

         "Distribution Date Statement" has the meaning set forth in Section
3.9.

         "Due Date" means, as to any Contract, the date in each month upon
which an installment of Monthly P&I is due.

         "Eligible Account" means (i) a trust account that is either (a)
maintained by the Trustee, (b) maintained with a depository institution or
trust company the commercial paper or other short-term debt obligations of
which have credit ratings from Standard & Poor's at least equal to "A-1" and
from Moody's equal to "P-1," which account is fully insured up to applicable
limits by the Federal Deposit Insurance Corporation or (c) maintained with a
depository institution acceptable to the Insurer, as evidenced by a letter from
the Insurer to that effect or (ii) a general ledger account or deposit account
at a depository institution acceptable to the Insurer, as evidenced by a letter
from the Insurer to that effect.

         "Eligible Investments" means any one or more of the following
obligations or securities, all of which shall be denominated in United States
dollars:

         (a)     direct obligations of, and obligations fully guaranteed as to
timely payment of principal and interest by, the United States of America or
any agency or instrumentality of the United States of America the obligations
of which are backed by the full faith and credit of the United States of
America and, to the extent, at the time of investment, acceptable to the
Insurer





                                       6
<PAGE>   12
and each rating agency rating the Certificates for securities having a rating
equivalent to the rating of the Certificates at the Closing Date, the direct
obligations of, or obligations fully guaranteed by, the Federal Home Loan
Mortgage Corporation and the Federal National Mortgage Association;

         (b)     demand and time deposits in, certificates of deposit of,
banker's acceptances issued by, or federal funds sold by any depository
institution or trust company (including the Trustee) incorporated under the
laws of the United States of America or any State and subject to supervision
and examination by Federal and/or State banking authorities, so long as at the
time of such investment or contractual commitment providing for such investment
either (i) the long-term, unsecured debt obligations of such depository
institution or trust company have credit ratings from Standard & Poor's at
least equal to "AA-" and from Moody's at least equal to "Aa2" or (ii) such
depository institution is acceptable to the Insurer as evidenced by a letter
from the Insurer to the Trustee;

         (c)     repurchase obligations with respect to (i) any security
described in clause (a) above or (ii) any other security issued or guaranteed
as to timely payment of principal and interest by an agency or instrumentality
of the United States of America, in either case entered into with a depository
institution or trust company (including the Trustee), acting as principal,
whose obligations having the same maturity as that of the repurchase agreement
would be Eligible Investments under clause (b) above;

         (d)     securities bearing interest or sold at a discount issued by
any corporation incorporated under the laws of the United States of America or
any state thereof which at the time of such investment or contractual
commitment providing for such investment have long-term, unsecured debt
obligations rated by Standard & Poor's "AA-" or better and by Moody's "Aa2" or
better; provided, however, that securities issued by any corporation will not
be Eligible Investments to the extent that investment therein will cause the
then outstanding principal amount of securities issued by such corporation and
held as part of the Trust to exceed 10% of the aggregate Outstanding Principal
Balances of the Contracts and all amounts of Eligible Investments held as part
of the Trust;

         (e)     commercial paper given the highest rating by Standard & Poor's
and Moody's at the time of such investment;

         (f)     investments in money market funds or money market mutual funds
having a rating from Standard & Poor's and Moody's in the highest investment
category granted thereby (including funds for which the Trustee or any of its
Affiliates is investment manager or advisor); and

         (g)     such other obligations or securities acceptable to the
Insurer, as evidenced by a letter from the Insurer to the Trustee (which
acceptability may be revoked at any time by the Insurer).

         "ERISA" means the Employee Retirement Income Security Act of 1974, as
amended.





                                       7
<PAGE>   13
         "Event of Default" means an event specified in Section 8.1.

         "Final Distribution Date" means April 15, 2004.

         "Financed Vehicle" means, as to any Contract, an automobile or
light-duty truck, together with all accessions thereto, securing an Obligor's
indebtedness under such Contract.  As used herein, "Financed Vehicle" includes
both the Initial Financed Vehicles and all Subsequent Financed Vehicles.

         "Full Prepayment" means any of the following: (a) payment by or on
behalf of the Obligor of the total amount required by the terms of the Contract
to be paid thereunder, which amount shall be at least equal to (i) 100% of the
Scheduled Balance of a Contract (exclusive of any Contract referred to in
clause (ii), (iii) or (iv) of the definition of the term "Liquidated
Contract"), (ii) interest accrued thereon to the date of such payment at the
APR; and (iii) any overdue amounts; or (b) payment by the Seller to the Trustee
of the Repurchase Amount of a Contract in connection with the purchase of a
Contract pursuant to Sections 2.3 or payment by the Servicer or the Insurer of
the Repurchase Amount of a Contract in connection with the purchase of all
Contracts pursuant to Section 3.7 or Section 10.2.

         "Funding Period" means the period from the Closing Date until the
earliest to occur of (i) the date on which the remaining Prefunded Amount is
less than $20,000, (ii) the date on which an Event of Default occurs or, (iii)
the close of business on March o, 1998.

         "Initial Contracts" means the Contracts initially transferred by the
Seller to the Trust pursuant to the Agreement on the Closing Date, which
Contracts are listed on the Schedule of Contracts.

         "Initial Financed Vehicle" means the Financed Vehicle securing the
related Initial Contract.

         "Initial Maximum Negative Carry Amount" means the maximum Negative
Carry Amount which could become owing during the Funding Period with respect to
the Prefunded Amount, assuming that no Subsequent Contracts are conveyed to the
Trust and that interest at a rate of [o]% per annum is earned on the Prefunded
Amount during the Funding Period.

         "Initial Balance" means the amount of funds deposited into the
Capitalized Interest Account by Onyx on the Closing Date equal to the Initial
Maximum Negative Carry Amount.

         "Insurance Agreement" means the Insurance and Reimbursement Agreement
to be dated as of December 12, 1997, among the Seller, the Servicer, the
Trustee and the Insurer as amended, modified or restated from time to time.






                                       8
<PAGE>   14
         "Insurance Proceeds" means proceeds paid pursuant to the Blanket
Insurance Policy and amounts (exclusive of rebated premiums) paid by any
insurer under any other insurance policy related to a Financed Vehicle or a
Contract.

         "Insurer" means Capital Markets Assurance Corporation or its successor
in interest.

         "Insurer Insolvency" means (i) the entry of a decree or order for
relief by a court or regulatory authority having jurisdiction in respect of the
Insurer in an involuntary case under the federal bankruptcy laws, as now or
hereafter in effect, or any other present or future federal or state bank
bankruptcy, insolvency, rehabilitation or similar law, or appointing a
receiver, liquidator, assignee, trustee, custodian, sequestrator or other
similar official of the Insurer or with respect to any substantial part of its
property, or ordering the winding up or liquidation of the affairs of the
Insurer and the continuance of any such decree or order unstayed and in effect
for a period of 60 consecutive days; or (ii) the commencement by the Insurer of
a voluntary case under the federal bankruptcy laws, as now or hereafter in
effect, or any other present or future federal or state bankruptcy, insolvency,
rehabilitation or similar law, or the consent by the Insurer to the appointment
of or taking possession by a receiver, liquidator, assignee, trustee,
custodian, sequestrator or other similar official of the Insurer or of any
substantial part of its property or the making by the Insurer of an assignment
for the benefit of creditors or the failure by the Insurer generally to pay its
debts as such debts become due or the taking of corporate action by the Insurer
in furtherance of any of the foregoing.

         "Interest Distribution" means, with respect to any Distribution Date
(referred to in this definition as the "current Distribution Date"), interest
equal to the product of one-twelfth of the Pass-Through Rate and the Pool
Balance as of the end of the Collection Period preceding the related Collection
Period (or, if the current Distribution Date is the first Distribution Date, as
of the Cut-Off Date) plus the amount of interest previously due but not paid to
Certificateholders, if any.

         "Lien" means a security interest, lien, charge, pledge, equity, or
encumbrance of any kind other than tax liens, mechanics' liens, and any liens
that attach to the respective Contract by operation of law.

         "Liquidated Contract" means a Contract which (i) has been the subject
of a Full Prepayment; or (ii) was a Defaulted Contract and with respect to
which Liquidation Proceeds constitute, in the Servicer's reasonable judgment,
the final amounts recoverable in respect of such Defaulted Contract, have been
realized and deposited in the Collection Account or the Payahead Account; or
(iii) has been paid in full on or after its Maturity Date; or (iv) has been a
Defaulted Contract for four or more Collection Periods and with respect to
which Liquidation Proceeds have not been deposited in the Collection Account or
the Payahead Account; provided, however, that in any event a Contract that is
delinquent in the amount of five monthly payments at the end of a Collection
Period is a Liquidated Contract. The Scheduled Balance of a Liquidated Contract
will equal zero.





                                       9
<PAGE>   15
         "Liquidation Expenses" means reasonable out-of-pocket expenses (not to
exceed Liquidation Proceeds), other than any overhead expenses, incurred by the
Servicer in connection with the realization of the full amounts due under any
Contract (including the attempted liquidation of a Contract which is brought
current and is no longer in default during such attempted liquidation) and the
sale of any property acquired in respect thereof which are not recoverable as
Insurance Proceeds.

         "Liquidation Proceeds" means amounts received by the Servicer (before
reimbursement for Liquidation Expenses) in connection with the realization of
the full amounts due and to become due under any Defaulted Contract and the
sale of any property acquired in respect thereof.

         "Mandatory Partial Prepayment" shall mean prepayment of the
certificates in part on the Distribution Date immediately succeeding the date
on which the Funding Period ends in the event any portion of the Prefunded
Amount remains on deposit in the Prefunding Account after giving effect to the
sale to the Trust of all Subsequent Contracts sold to the Trust during the
Funding Period, including any such acquisition and conveyance on the date on
which the Funding Period ends.

         "Mandatory Partial Prepayment Date" means the Distribution Date on
which the Certificates are partially prepaid pursuant to Section 4.7 of the
Agreement, which Distribution Date shall be the Distribution Date immediately
succeeding the date on which the Funding Period ends in the event that any
portion of the Prefunded Amount remains on deposit in the Prefunding Account
after giving effect to the sale to the Trust of all Subsequent Contracts sold
to the Trust during the Funding Period, including any acquisition and
conveyance on the date on which the Funding Period ends.

         "Maturity Date" means with respect to any Contract, the date on which
the last scheduled payment of such Contract shall be due and payable as such
date may be extended pursuant to Section 3.2.

         "Monthly P&I" means, with respect to any Contract, the amount of each
monthly installment payment of principal and interest payable to the Obligee of
such Contract in accordance with the terms thereof, exclusive of any charges
allocable to the financing of any insurance premium and charges which represent
late payment charges or extension fees.

         "Moody's" means Moody's Investors Service, Inc. and its successors in
interest.

         "Negative Carry Amount" means, with respect to any Collection Period,
an amount equal to the difference between (i) one month's interest on the
Prefunded Amount on deposit in the Prefunding Account as of the first day of
the related Collection Period at a rate equal to the Pass-Through Rate and (ii)
the earnings received by the Trustee on behalf of the Trust during such
Collection Period from investment of such Prefunded Amount.





                                       10
<PAGE>   16
         "Net Insurance Proceeds" means Insurance Proceeds paid by any insurer
under a comprehensive and collision or vendor's single interest insurance
policy related to a Contract (other than funds used for the repair of related
Financing Vehicles or otherwise released to the related Obligor in accordance
with the normal servicing procedures of the Servicer and proceeds from the
Blanket Insurance Policy after reimbursement to the Servicer of expenses
recoverable under such Policy.

         "Net Liquidation Proceeds" means the amount derived by subtracting
from the Liquidation Proceeds of a Contract the related Liquidation Expenses.

         "Obligee" means the Person to whom an Obligor is indebted under a
Contract.

         "Obligor" means the purchaser or the co-purchasers of the Financed
Vehicle or any other Person who owes payments under the Contract.

         "Officers' Certificate" means a Certificate signed by the Chairman,
the President or a Vice President, and by the Treasurer, an Assistant
Treasurer, the Controller, an Assistant Controller, the Secretary or an
Assistant Secretary of any Person delivering such Certificate and delivered to
the Person to whom such Certificate is required to be delivered. In the case of
an Officers' Certificate of the Servicer, at least one of the signing officers
must be a Servicing Officer. Unless otherwise specified, any reference herein
to an Officers' Certificate shall be to an Officers' Certificate of the
Servicer.

         "Onyx" means Onyx Acceptance Corporation and its successors in
interest.

         "Opinion of Counsel" means a written opinion of counsel (who may be
counsel to the Seller or the Servicer) acceptable to the Trustee and the
Insurer.

         "Original Pool Balance" means the Cut-Off Date Scheduled Balance for
all of the Contracts plus the Prefunded Amount.

         "Outstanding" means, with respect to a Contract and as of the time of
reference thereto, a Contract that has not reached its Maturity Date, has not
been fully prepaid, has not become a Liquidated Contract and has not been
repurchased pursuant to Sections 2.3, 3.7 or 10.2.

         "Outstanding Principal Balance" as of the Cut-Off Date or any
Subsequent Transfer Date means, (i) with respect to any Rule of 78's Contract,
the amount set forth as the Outstanding Principal Balance of such Contract on
the Schedule of Contracts, such amount being the total of all unpaid Monthly
P&I due as of the Cut-Off Date or the Subsequent Transfer Date, as applicable,
minus any unearned (or earned but unpaid) interest as of the Cut-Off Date or
the Subsequent Transfer Date, as applicable, computed in accordance with the
Rule of 78's, and (ii) with respect to any Simple Interest Contract, the amount
set forth as the Outstanding Principal Balance of such Contract on the Schedule
of Contracts, such amount being the total of all principal payments due after
the Cut-Off Date or the Subsequent Transfer Date, as applicable.





                                       11
<PAGE>   17
         "Pass-Through Rate" means o% per annum (computed on the basis of a
360-day year of twelve 30-day months payable monthly).

         "Payahead Account" means the account established and maintained as the
Payahead Account pursuant to Section 4.1.

         "Paying Agent" shall have the meaning specified in Section 5.11 and
shall initially be Bankers Trust Company.

         "Person" means a legal person, including any individual, corporation,
estate, partnership, joint venture, association, joint stock company, trust,
unincorporated organization, or government or any agency or political
subdivision thereof.

         "Policy Claim Amount" means, with respect to each Distribution Date,
the amount, if any, by which the Certificate Distribution Amount plus the
Servicing Fee for such Distribution Date exceeds the Collection Account Amount
Available for such Distribution Date.

         "Pool Balance" shall mean as of any date, the Aggregate Scheduled
Balance of the Contracts, excluding those Contracts which as of such date have
become Liquidated Contracts or have been repurchased by the Seller or purchased
by the Servicer, plus the amount, if any, remaining on deposit in the
Prefunding Account on such date.

         "Pool Factor" means a six-digit decimal figure which the Servicer will
compute each month indicating the Pool Balance at the end of the month as a
fraction of the Original Pool Balance.

         "Preference Claim" has the meaning set forth in Section 8.5.

         "Prefunded Account" means the account created with an initial deposit
by the Seller of $o established and maintained pursuant to Section 4.1(a).

         "Prefunded Amount" means, the initial deposit by the Seller of $o in
the Prefunding Account.

         "Premium" shall have the meaning assigned thereto in the Insurance
Agreement.

         "Prepayment Amount" means, as of the Mandatory Partial Prepayment
Date, the Prefunded Amount after giving effect to all transfers of Subsequent
Contracts on or before such date.

         "Principal Distribution" means, with respect to any Distribution Date,
the Aggregate Scheduled Balance Decline during the related Collection Period
and, with respect to the Distribution Date immediately following the end of the
Funding Period, any portion of the Prefunding Amount remaining on deposit in
the Prefunding Account.





                                       12
<PAGE>   18
         "Purchase Agreement" means the Sale and Servicing Agreement dated as
of September 8, 1994 between Onyx Acceptance Corporation as seller and Onyx
Acceptance Financial Corporation as purchaser, and as such agreement may be
modified, supplemented or amended from time to time.

         "Rating Agencies" means Moody's Investors Service, Inc. and Standard &
Poor's Ratings Group.

         "Recomputed Actuarial Method" means a method of accounting pursuant to
which each payment of Monthly P&I due on a Rule of 78's Contract will be deemed
to consist of interest equal to the product of 1/12 of the Recomputed Yield for
such Contract and the Scheduled Balance of the Contract as of the preceding Due
Date for such Contract and of principal to the extent of the remainder of such
scheduled payment, which will cause the Outstanding Principal Balance as of the
Cut-Off Date or the Subsequent Transfer Date, as applicable, to be amortized in
full at the Recomputed Yield.

         "Recomputed Yield" for any Rule of 78's Contract means the per annum
rate determined as of the Cut-Off Date or the Subsequent Transfer Date, as
applicable, such that the net present value of the remaining scheduled payments
due on such Contract, discounted at such rate from the Due Date for each such
scheduled payment to the Due Date for such Contract immediately preceding the
Cut-Off Date or the Subsequent Transfer Date, as applicable, will equal the
Outstanding Principal Balance.

         "Record Date" means, with respect to any Distribution Date, the
Business Day prior to such Distribution Date, unless Definitive Certificates
have been issued, in which case Record Date shall mean the last day of the
immediately preceding calendar month.

         "Registrar of Titles" means the agency, department or office having
the responsibility for maintaining records of titles to motor vehicles and
issuing documents evidencing such titles in the jurisdiction in which a
particular Financed Vehicle is registered.

         "Repurchase Amount" means the amount, as of the date of purchase or
repurchase of any Contract, equal to the Scheduled Balance of such Contract as
of the Due Date in the Collection Period in which such purchase or repurchase
occurs plus interest on such Contract through the Due Date in the Collection
Period preceding the date in which such purchase or repurchase occurs, to the
extent not previously collected.

         "Repurchased Contract" means a Contract (i) purchased as of the
Business Day prior to the respective Servicer Report Date by the Servicer
pursuant to Section 3.7 or (ii) repurchased by the Seller pursuant to Section
2.3.

         "Responsible Officer" means any officer of the Trustee within the
Corporate Trust Office including any vice president, assistant vice president,
assistant treasurer, assistant secretary or any other officer of the Trustee
customarily performing functions similar to those performed by any of the above
designated officers with direct responsibility for the administration of this





                                       13
<PAGE>   19
Agreement, respectively, or to whom any corporate trust matter is referred
because of his knowledge of and familiarity with the particular subject.

         "Rule of 78's Contract" means a Contract as to which the portion of
payments allocable to earned interest and principal thereunder is determined
according to the "Rule of 78's." Under the "Rule of 78's," the amount of each
payment allocable to interest on a Contract is determined by multiplying the
total amount of add-on interest payable over the term of the Contract by a
fraction, the denominator of which is equal to the sum of a series of numbers
representing the total number of monthly payments due under the Contract and
the numerator of which is the number of payments remaining before giving effect
to the payment to which the fraction is being applied.

         "Schedule of Contracts" means the list of Initial Contracts, attached
hereto as Schedule I, and each list or lists of Subsequent Contracts delivered
to the Trustee on each Subsequent Transfer Date and identified on each related
Subsequent Closing Date Certificate, which are being sold to the Trust as part
of the Trust Estate, together with supplemental data regarding the Initial
Contracts or Subsequent Contracts calculated by Merrill Lynch & Co. and
verified by the Servicer. The Schedule of Contracts attached hereto as Schedule
I sets forth the Original Pool Balance, as well as the following information
with respect to each Initial Contract in columns, and any supplement to the
Schedule of Contracts for Subsequent Contracts will present the information in
the same format:

                 Contract Number ("ACCT NBR")
                 Date of Origination ("ORG DT")
                 Maturity Date ("MAT DT")
                 Monthly P&I ("P&I")
                 Original Principal Balance ("ORIG AMT")
                 Outstanding Principal Balance ("PRIN BAL")
                 Annual Percentage Rate ("APR")

In addition, the information contained in Schedule I shall also be contained on
a computer disk or tape (the "Disk") that shall be delivered by the Servicer to
the Trustee not later than the 5th Business Day following the Closing Date. The
Recomputed Yield and the Scheduled Balance of each Rule of 78's Contract for
each Due Date after the Cut-Off Date in the case of the Initial Contracts, and
each Due Date after the related Subsequent Transfer Date in the case of
Subsequent Contracts, computed in accordance with the definition of Scheduled
Balance set forth herein, as calculated by Merrill Lynch & Co. and verified by
the Servicer, shall supplement Schedule I and shall be a part of the Schedule
of Contracts and made available by the Servicer to the Trustee upon reasonable
request.

         "Scheduled Balance" means, with respect to any Rule of 78's Contract
for the Due Date in each month and as of the Cut-Off Date or the Subsequent
Transfer Date, as applicable, the amount set forth as the "Scheduled Balance"
of such Contract for the Due Date in such month or the Cut-Off Date on the
Schedule of Contracts. For a Rule of 78's Contract, each such amount shall be
the present value (determined as provided below) as of the Due Date for the
applicable





                                       14
<PAGE>   20
month of all payments of Monthly P&I on the Contract due after such month (due
during or after the first Collection Period in the case of a Scheduled Balance
at the Cut-Off Date or Subsequent Transfer Date, as applicable). Such present
value as of any Distribution Date shall be determined by discounting, on a
monthly basis, each such scheduled payment of Monthly P&I from the Due Date for
such payment back to the Due Date for such Contract in the Collection Period
related to such Distribution Date, using the applicable discount rate specified
below. Such present value as of the Cut-Off Date or the Subsequent Transfer
Date, as applicable, shall be determined by discounting, on a monthly basis,
each such scheduled payment of Monthly P&I from the Due Date for such payment
back to the Cut-Off Date or Subsequent Transfer Date, using the applicable
discount rate specified below. The applicable discount rate shall be the
Recomputed Yield for that Contract. The Scheduled Balance of a Rule of 78's
Contract that becomes a Liquidated Contract or a Repurchased Contract is
reduced to zero as of the close of business on the Due Date for such Contract
in the Collection Period in which such Contract became a Liquidated Contract or
a Repurchased Contract. The principal balance of a Simple Interest Contract
that becomes a Liquidated Contract or a Repurchased Contract is reduced to zero
as of the close of business on the date the Contract becomes a Liquidated
Contract or is repurchased, as the case may be. As used herein, reference to
the Scheduled Balance of a Contract for a Distribution Date shall mean the
Scheduled Balance of such Contract as of close of business on the last day of
the Collection Period ending immediately prior to such Distribution Date, and
reference to the Scheduled Balance of a Contract in a month shall mean the
Scheduled Balance of such Contract as of the opening of business on the first
day of such month.

         "Seller" means Onyx Acceptance Financial Corporation in its capacity
as the seller of the Contracts under this Agreement, and each successor to Onyx
Acceptance Financial Corporation (in the same capacity) pursuant to Section
6.2.

         "Servicer" means Onyx Acceptance Corporation in its capacity as the
servicer of the Contracts under Section 3.1, and, in each case upon such
succession in accordance herewith, each successor to Onyx Acceptance
Corporation in the same capacity pursuant to Section 7.2 and each successor
servicer pursuant to Section 8.2.

         "Servicer Report Date" means the fifth Business Day prior to the
related Distribution Date.

         "Servicing Fee" means, as to any Distribution Date, the fee payable to
the Servicer for services rendered during the Collection Period ending
immediately prior to such Distribution Date, which shall equal with respect to
each Contract, the product of (A) the Servicing Fee Percent and (B) the
Scheduled Balance of such Contract as of the close of the preceding Collection
Period. As additional compensation, the Servicer will be entitled to any late
fees and other administrative fees and expenses or similar charges collected
with respect to the Contracts. The Servicer or its designee will also receive
as servicing compensation all investment earnings on funds credited to the
Collection Account and the amount, if any, by which the outstanding principal
balance of a Rule of 78's Contract (calculated in accordance with the Rule of
78's method) that is subject to a Full Prepayment exceeds the Scheduled Balance
of such Contract; provided, however, that the Servicer agrees to that each
amount payable to it in respect of a Full





                                       15
<PAGE>   21
Prepayment on Rule 78's Contract that exceeds such Contract's Scheduled Balance
shall be deposited in the Spread Account and applied in accordance with the
Insurance Agreement.

         "Servicing Fee Rate" means 1.00% per annum.

         "Servicing Officer" means any officer of the Servicer involved in, or
responsible for, the administration and servicing of the Contracts whose name
appears on a list of servicing officers furnished to the Trustee by the
Servicer, as such list may be amended or supplemented from time to time.

         "Servicing Standards" means at any time the quality of the Servicer's
performance with respect to (i) compliance with the terms of the Agreement and
(ii) adequacy, measured in accordance with industry standards and current and
historical standards of the Servicer, in respect of the servicing of all
Contracts serviced by the Servicer, regardless of whether any such Contract is
owned by the Servicer or otherwise.

         "Simple Interest Contract" means a Contract as to which the portion of
payments allocable to earned interest and principal thereunder is determined
according to the Simple Interest Method. For such Contracts, interest accrued
as of the Due Date is paid first, and then the remaining payment is applied to
the unpaid principal balance. Accordingly, if an Obligor pays the fixed monthly
installment in advance of the Due Date, the portion of the payment allocable to
interest for the period since the preceding payment will be less than it would
be if the payment were made on the Due Date, and the portion of the payment
allocable to reduce the principal balance will be correspondingly greater.
Conversely, if an Obligor pays the fixed monthly installment after its Due
Date, the portion of the payment allocable to interest for the period since the
preceding payment will be greater than it would be if the payment were made on
the Due Date, and the portion of the payment allocable to reduce the principal
balance will be correspondingly smaller. When necessary, an adjustment will be
made at the maturity of the Contract to the scheduled final payment to reflect
the larger or smaller, as the case may be, allocations of payments to the
amount financed under the Contract as a result of early or late payments, as
the case may be.

         "Simple Interest Method" means the method for calculating interest on
a Contract whereby interest due is calculated each day based on the actual
principal balance of the Contract on that day.

         "Spread Account" means the account so denominated and provided for in
the Insurance Agreement.

         "Standard & Poor's" means Standard & Poor's Ratings Group, a division
of The McGraw Hill Companies, Inc. or its successor in interest.

         "Subsequent Closing Date" means the Business Day immediately preceding
the first Distribution Date and on the Business Day preceding each Distribution
Date immediately following a Subsequent Transfer Date.





                                       16
<PAGE>   22
         "Subsequent Closing Date Certificate" means the certificate of an
officer of the Seller delivered in connection with any Subsequent Closing Date,
substantially in the form attached hereto as Exhibit E-2.

         "Subsequent Contracts" means the Contracts which are transferred by
the Seller to the Trust on each Subsequent Transfer Date pursuant to this
Agreement and are identified on the schedule attached to each Transfer
Certificate delivered to the Trustee substantially in the form attached hereto
as Exhibit E-1 on each such Subsequent Transfer Date.

         "Subsequent Financed Vehicle" means the Financed Vehicle securing a
Subsequent Contract.

         "Subsequent Transfer Date" means from time to time during the Funding
Period, and as frequently as each Business Day, the purchase by the Trust from
the Seller with monies on deposit in the Prefunding Account of additional Rule
of 78's Contracts and Simple Interest Method Contracts.

         "Successor Custodian" shall have the meaning as set forth in Section
2.4(b).

         "Surety Bond" means the principal/interest surety bond issued by the
Insurer to the Trustee, the form of which is attached hereto as Exhibit C.

         "Title Document" means, with respect to any Financed Vehicle, the
certificate of title for, or other evidence of ownership of, such Financed
Vehicle issued by the Registrar of Titles in the jurisdiction in which such
Financed Vehicle is registered. For Financed Vehicles registered in the State
of California, Title Document may consist of electronic evidence of ownership
on the Electronic Lien and Title system of the California Department of Motor
Vehicles.

         "Transfer Agent" shall have the meaning specified in Section 5.3 and
initially shall be Bankers Trust Company.

         "Transfer Certificate" means the certificate of an officer of the
Seller delivered in connection with the delivery of any Subsequent Contract on
any Subsequent Transfer Date, substantially in the form attached hereto as
Exhibit E-1.

         "Trust" means the Onyx Acceptance Grantor Trust, 1997-4 created by the
Agreement.

         "Trust Estate" has the meaning set forth in Section 2.1 hereof. The o
Account, the Spread Account and the Payahead Account and amounts on deposit
therein and credited thereto shall not be part of the Trust Estate.

         "Trustee" means Bankers Trust Company, a New York banking corporation,
until a successor Person shall have become the Trustee pursuant to the
applicable provisions of this Agreement, and thereafter "Trustee" shall mean
such successor Person.





                                       17
<PAGE>   23
         "UCC" means the Uniform Commercial Code as in effect, as applicable,
in California, Arizona, Florida, Georgia, Idaho, Illinois, Indiana, Nevada, New
Jersey, Oregon or Washington, or if the context requires, any other applicable
state.


         SECTION 1.2. Usage of Terms. With respect to all terms in the
Agreement, the singular includes the plural and the plural the singular; words
importing any gender include the other genders; references to "writing" include
printing, typing, lithography, and other means of reproducing words in a
visible form; references to agreements and other contractual instruments
include all amendments, modifications and supplements thereto or any changes
therein entered into in accordance with their respective terms and not
prohibited by the Agreement; references to Persons include their permitted
successors and assigns; and the term "including" means "including without
limitation."

         SECTION 1.3. Section References. All section references, unless
otherwise indicated, shall be to Sections in this Agreement.

         SECTION 1.4. Calculations. Except as otherwise provided in this
Agreement, all interest rate and basis point calculations under this Agreement
will be made on the basis of a 360-day year and twelve thirty-day months and
will be carried out to at least three decimal places.  Collections of interest
on Rule of 78's Contracts shall be calculated as if such Contracts were
actuarial contracts the scheduled principal balances of which are the Scheduled
Balances thereof.

         SECTION 1.5. Accounting Terms. All accounting terms used but not
specifically defined herein shall be construed in accordance with generally
accepted accounting principles in the United States.

                                   ARTICLE II

    Conveyance of the Contracts; Representation and Warranties of the Seller

         SECTION 2.1. Sale and Assignment of Contracts.

         (a)     In consideration of the Trustee's delivery to, or upon the
    order of, the Seller of authenticated certificates in an aggregate amount
    equal to the Original Pool Balance, the Seller hereby sells, grants,
    transfers, conveys and assigns to the Trustee on behalf of the Trust for
    the benefit of the Certificateholders and the Insurer, without recourse
    (except as expressly provided in Section 2.3 hereof) effective upon the
    Closing Date, all of its right, title and interest in, to and under:

                 (i)      the Initial Contracts listed in the Schedule of
         Contracts including, without limitation, all payments of Monthly P&I
         due on or after the Cut-Off Date, all Net Liquidation Proceeds and Net
         Insurance Proceeds with respect to any Initial Financed Vehicle to
         which an Initial Contract relates received on or after the Cut-Off
         Date and all





                                       18
<PAGE>   24
         other proceeds received in respect of such Contracts and any and all
         security interests in the Initial Financed Vehicles;

                 (ii)     the Contract Documents relating to the Initial
         Contracts (except the Contract Documents for Initial Contracts which
         have been the subject of a Full Prepayment received on or after the
         Cut-Off Date but no later than one Business Day prior to the Closing
         Date, in lieu of which the Seller shall have deposited in or credited
         to the Collection Account on or prior to the Closing Date an amount
         equal to such Full Prepayment);

                 (iii)    all amounts on deposit in the Collection Account,
         including all Eligible Investments credited thereto (but excluding
         investment earnings thereon);

                 (iv)     the right of the Seller, as purchaser under the
         Purchase Agreement, to cause the seller thereunder to repurchase
         Initial Contracts listed in the Schedule of Contracts under certain
         circumstances;

                 (v)      the security interest of the Seller in the Initial
         Financed Vehicles and the rights to receive proceeds from claims on
         certain insurance policies covering the Initial Financed Vehicles or
         the individual Obligors under each related Initial Contract;

                 (vi)     the Seller's right to proceeds under the Blanket
         Insurance Policy;

                 (vii)    all right, title and interest of the Seller under the
         Capitalized Interest Agreement; and

                 (viii)   all proceeds in any way delivered with respect to the
         foregoing, all rights to payments with respect to the foregoing and
         all rights to enforce the foregoing.

         (b)     Subject to the conditions set forth in Section 2.1(c), in
    consideration of the Trustee's delivery of authenticated certificates on
    the Closing Date in an aggregate amount equal to the Prefunded Amount, the
    Seller hereby sells, grants, transfers, conveys and assigns to the Trustee
    on behalf of the Trust for the benefit of the Certificateholders and the
    Insurer, without recourse (except as expressly provided in Section 2.3
    hereof) effective upon delivery to the Trustee on the related Subsequent
    Transfer Date against payment therefor from the Prefunded Amount in
    accordance with Section 4.7(b), all of its right, title and interests in,
    to and under:

                 (i)      all Subsequent Contracts delivered to the Trustee
         including, without limitation, all payments of Monthly P&I due on or
         after the related Subsequent Transfer Date, all Net Liquidation
         Proceeds and Net Insurance Proceeds with respect to any Subsequent
         Financed Vehicle to which a Subsequent Contract relates received on or
         after the related Subsequent Transfer Date and all other proceeds
         received in respect of such Subsequent Contracts and any and all
         security interests in the Subsequent Financed Vehicles;





                                       19
<PAGE>   25
                 (ii)     the Contract Documents relating to the Subsequent
         Contracts;

                 (iii)    the right of the Seller, as purchaser under the
         Purchase Agreement, to cause Onyx as the seller thereunder to
         repurchase Subsequent Contracts listed on any Transfer Certificate
         under certain circumstances;

                 (iv)     the security interest of the Seller in the Subsequent
         Financed Vehicles and the rights to receive proceeds from claims on
         certain insurance policies covering the Subsequent Financed Vehicles
         or the individual Obligors under each related Subsequent Contract; and

                 (v)      all proceeds in any way delivered with respect to the
         foregoing, all rights to payments with respect to the foregoing and
         all rights to enforce the foregoing.

         The foregoing items of property listed in this paragraph, together
with the rights of the Trustee under the Surety Bond and the rights of the
Trustee to the Prefunded Amount, are the Trust Estate.

         It is the intention of the Seller and the Trustee that the assignment
and transfer herein contemplated constitute (and shall be construed for all
purposes as) a sale of the Trust Estate (other than the Surety Bond and the
Prefunded Amount), conveying good title thereto free and clear of any liens and
encumbrances, from the Seller to the Trust. However, in the event that such
conveyance is deemed to be a pledge to secure a loan (in spite of the express
intent of the parties hereto that this conveyance is to be treated as a true
and complete sale), the Seller hereby grants to the Trustee on behalf of the
Trust for the benefit of the Certificateholders a first priority perfected
security interest in all of the Seller's right, title and interest in the Trust
Estate whether now existing or hereafter created (other than the Surety Bond
and the Prefunded Amount), and all proceeds of the foregoing to secure the loan
deemed to be made in connection with such pledge and, in such event, this
Agreement shall constitute a security agreement under applicable law.

         (c)     The sale and assignment of the Subsequent Contracts and the
    other property and rights related thereto described in Section 2.1(b) shall
    be subject to the satisfaction of each of the following conditions as of
    the related Subsequent Transfer Date, as applicable:

                 (i)      the Seller shall have delivered to the Trustee the
         Subsequent Contracts together with a duly executed Transfer
         Certificate, substantially in the form of Exhibit E-1;

                 (ii)     Neither the Servicer nor the Seller was insolvent nor
         will either of them have been made insolvent by such transfer nor is
         either of them aware of any pending Seller or Servicer insolvency;





                                       20
<PAGE>   26
                 (iii)    the addition of such Subsequent Contracts will not
         cause as of the related Subsequent Closing Date and has not caused as
         of the related Subsequent Transfer Date the tax consequences to the
         Trust or the Certificateholders to be other than as discussed in the
         prospectus for the Trust under the caption "Certain Tax Consequences"
         and in the tax opinion of counsel to the Seller delivered on the
         Closing Date, as confirmed in the legal opinion delivered on the
         immediately following Subsequent Closing Date dated the date of such
         Subsequent Closing Date pursuant to Section 2.1(h)(iv);

                 (iv)     the Funding Period shall not have terminated;

                 (v)      no selection procedures believed by the Seller or the
         Servicer to be adverse to the interests of the Certificateholders or
         the Insurer shall have been utilized in selecting the Subsequent
         Contracts;

                 (vi)     The Seller and the Trustee shall not have been
         advised by either Rating Agency on or before the Business Day
         immediately preceding such Subsequent Transfer Date that the
         conveyance of the Subsequent Contracts would result in a
         qualification, modification or withdrawal of its then current rating
         of the Certificates;

                 (vii)    the weighted average APR of the Contracts (after
         giving effect to the purchase of the related Subsequent Contracts) is
         not less than o%; and

                 (viii)   the weighted average remaining term of the Contracts
         (including the Subsequent Contracts) as of the Subsequent Transfer
         Date will not be greater than 72 months.

         (d)     In connection with the sale of the Contracts pursuant to the
    Purchase Agreement, Onyx has filed with the office of the Secretary of
    State of the State of California UCC-1 financing statements naming Onyx as
    seller and including the Initial Contracts and Subsequent Contracts in the
    description of the assets being sold thereunder. In connection with the
    sale of the Initial Contracts pursuant to this Agreement, the Seller has
    filed or caused to be filed UCC-1 financing statements, executed by the
    Seller as seller, naming the Trust as purchaser and describing the Initial
    Contracts as the assets being sold by it to the Trust, with the Office of
    the Secretary of State of the State of California. The Seller shall have
    caused UCC-2 termination statements to have been filed with the Office of
    Secretary of State of the State of California terminating any outstanding
    security interests in the Initial Contracts. The Seller will deliver the
    Subsequent Contracts to the Trustee on each Subsequent Transfer Date
    together with the Transfer Certificate relating to such Subsequent
    Contracts. On each Subsequent Closing Date, the Seller shall cause UCC-1
    financing statements to be filed with the California Secretary of State
    executed by the Seller as seller and the Trustee, on behalf of the Trust,
    as purchaser and describing the Subsequent Contracts delivered to the
    Trustee from and including the preceding Subsequent Closing Date (or the
    Closing Date with respect to the first Subsequent Closing Date) as the
    assets sold and shall have caused UCC-2 termination statements to have been
    filed with the office of the Secretary of State of the State of California
    terminating any outstanding security interests in such Subsequent Contracts
    and





                                       21
<PAGE>   27
    certificates from each secured creditor of the Seller confirming that such
    creditor has no claim of a security interest in any of such Subsequent
    Contracts. From time to time, the Servicer shall cause to be taken such
    actions as are necessary to continue the perfection of the Trust's
    ownership interest in the Contracts and to continue the first priority
    security interest of the Trust in the Financed Vehicles and their proceeds
    (other than, as to such priority, any statutory lien arising by operation
    of law after the Closing Date or the Subsequent Transfer Date, as
    applicable, which is prior to such interest), including, without
    limitation, the filing of financing statements, amendments thereto or
    continuation statements and the making of notations on records or documents
    of title.

         (e)     If any change in the name, identity or corporate structure of
    Onyx, the Seller or the relocation of the chief executive office of any of
    them would make any financing or continuation statement or notice of lien
    filed under this Agreement misleading within the meaning of applicable
    provisions of the UCC or any title statute, the Servicer, within the time
    period required by applicable law, shall file such financing statements or
    amendments as may be required to preserve and protect the interests of the
    Trustee on behalf of the Trust and the Certificateholders in the Contracts
    and in the related Financed Vehicles and proceeds thereof. Promptly
    thereafter, and in any event within 30 days of such change or relocation,
    the Servicer shall deliver to the Trustee an Opinion of Counsel stating
    that, in the opinion of such counsel, all financing statements or
    amendments necessary fully to preserve and protect the interests of the
    Trustee and the Certificateholders in the Contracts and in the related
    Financed Vehicles and proceeds thereof have been filed, and reciting the
    details of such filings.

         (f)     During the term of this Agreement, the Seller and Onyx shall
    each maintain its chief executive office in one of the states of the United
    States.

         (g)     The Servicer shall pay all reasonable costs and disbursements
in connection with the perfection and the maintenance of perfection, as against
all Persons other than the Trustee, of the Trust's right, title and interest in
and to the Contracts and in connection with maintaining the first priority
security interest in the related Financed Vehicles and the proceeds of such
Financed Vehicles.

         (h)     On each Subsequent Closing Date, the Seller shall:

                 (i)      file a UCC-1 financing statement with the Secretary
         of State of the State of California executed by the Seller as seller,
         naming the Trustee, on behalf of the Trust, as purchaser and
         describing the Subsequent Contracts delivered to the Trustee on or
         after the preceding Subsequent Closing Date (or the Closing Date, in
         the case of the first Subsequent Closing Date) as the assets sold by
         it to the Trust;

                 (ii)     cause to be filed a UCC-2 termination statement with
         the office of the Secretary of State of the State of California
         terminating any outstanding security interests in the Subsequent
         Contracts subject to the UCC-1 financing statement described in clause
         (i), above and deliver a certificate from each secured creditor of the
         Seller confirming that such creditor has no claim of any security
         interest in any of such Subsequent Contracts;





                                       22
<PAGE>   28
                 (iii)    deliver to each Rating Agency, the Insurer and the
         Trustee a Subsequent Closing Date Certificate; and

                 (iv)     deliver to each Rating Agency, the Insurer and the
         Trustee an Opinion of Counsel with respect to the absence of negative
         tax consequences to the Trust, the characterization of the transfer of
         the Subsequent Contracts and the perfection of the Trustee's interest
         on behalf of the Trust therein.

         Failure to comply with any of the conditions set forth in this Section
2.1(h) on any Subsequent Closing Date shall be deemed to be a breach of a
representation and warranty with respect to each of the Subsequent Contracts to
which such failed conditions relate as of such Subsequent Closing Date.

         SECTION 2.2. Representations and Warranties. The Seller represents and
warrants to the Trustee and the Trust for the benefit of the Certificateholders
and the Insurer as follows:

         (a)     As to the Seller, as of the Closing Date with respect to the
    Initial Contracts and as of each Subsequent Transfer Date with respect to
    the Subsequent Contracts delivered to the Trustee on such date:

                 (i)      the Seller is duly organized and validly existing as
         a corporation organized and existing and in good standing under the
         laws of the State of Delaware, with power and authority to own its
         properties and to conduct its business and had at all relevant times,
         and has, power, authority, and legal right to originate or acquire and
         own the Contracts;

                 (ii)     the Seller is duly qualified to do business as a
         foreign corporation in good standing, and shall have obtained all
         necessary licenses and approvals in all jurisdictions in which the
         ownership or lease of property or the conduct of its business requires
         such qualifications;

                 (iii)    the Seller has the power and authority to execute and
         deliver this Agreement and to carry out its terms; the Seller has full
         power and authority to sell and assign the property to be sold and
         assigned to and deposited with the Trustee on behalf of the Trust as
         part of the Trust and has duly authorized such sale and assignment to
         the Trustee on behalf of the Trust by all necessary corporate action;
         and the execution, delivery, and performance of this Agreement has
         been duly authorized by the Seller by all necessary corporate action;

                 (iv)     this Agreement constitutes (A) a valid sale,
         transfer, and assignment of the Contracts, enforceable against
         creditors of and purchasers from the Seller and (B) a legal, valid,
         and binding obligation of the Seller enforceable in accordance with
         its terms, except as such enforceability may be limited by bankruptcy,
         insolvency, reorganization, or other similar laws affecting the
         enforcement of creditors' rights in general and by





                                       23
<PAGE>   29
         general principles of equity, regardless of whether such
         enforceability shall be considered in a proceeding in equity or at
         law;

                 (v) the consummation of the transactions contemplated by this
         Agreement and the fulfillment of the terms hereof shall not conflict
         with, result in any breach of any of the terms and provisions of, nor
         constitute (with or without notice or lapse of time) a default under,
         the Certificate of Incorporation or Bylaws of the Seller, or any
         indenture, agreement, or other instrument to which the Seller is a
         party or by which it shall be bound; nor result in the creation or
         imposition of any Lien upon any of the properties of the Seller
         pursuant to the terms of any such indenture, agreement, or other
         instrument (other than this Agreement); nor violate any law or any
         order, rule, or regulation applicable to the Seller of any court or of
         any federal or state regulatory body, administrative agency, or other
         governmental instrumentality having jurisdiction over the Seller or
         its properties; and

                 (vi)     to the Seller's best knowledge after due inquiry,
         there are no proceedings or investigations pending, or threatened,
         before any court, regulatory body, administrative agency, or other
         governmental instrumentality having jurisdiction over the Seller or
         its properties: (A) asserting the invalidity of this Agreement or the
         Certificates, (B) seeking to prevent the issuance of the Certificates
         or the consummation of any of the transactions contemplated by this
         Agreement, (C) seeking any determination or ruling that might
         materially and adversely affect the performance by the Seller of its
         obligations under, or the validity or enforceability of, this
         Agreement or the Certificates, or (D) naming the Seller which might
         adversely affect the federal income tax attributes of the
         Certificates.

         (b)     As to each Initial Contract (except as noted below as being
    applicable only to either Rule of 78's Contracts or Simple Interest
    Contracts):

                 (i)      the information pertaining to such Initial Contract
         set forth in the related Schedule of Contracts was true and correct in
         all material respects at the Closing Date and the calculations of the
         Scheduled Balances appearing in such Schedule of Contracts for each
         such Initial Contract at the Cut-Off Date, and in the case of Rule of
         78's Contracts at each Distribution Date thereafter prior to the
         related Maturity Date, have been performed in accordance with this
         Agreement and are accurate;

                 (ii)     as of the Closing Date, such Initial Contract was
         secured by a valid and enforceable first priority security interest in
         favor of Onyx in the related Initial Financed Vehicle, and such
         security interest has been duly perfected and is prior to all other
         liens upon and security interests in such Financed Vehicle which now
         exist or may hereafter arise or be created (except, as to priority,
         for any lien for unpaid taxes or unpaid storage or repair charges
         which may arise after the Closing Date); such security interest had
         been assigned by Onyx to the Seller pursuant to the Purchase Agreement
         and, as of the Closing Date, has been assigned by the Seller to the
         Trust pursuant to Section 2.1(a)(i) hereof;





                                       24
<PAGE>   30
                 (iii)    (A) if the related Initial Financed Vehicle was
         originated in a state in which notation of a security interest on the
         Title Document (or in the electronic title records, in the case of the
         State of California) is required or permitted to perfect such security
         interest, the Title Document for such Initial Financed Vehicle shows,
         or, if a new or replacement Title Document is being applied for with
         respect to such Initial Financed Vehicle, the Title Document will be
         received within 180 days of the Closing Date and will show Onyx named
         as the original secured party under the related Initial Contract as
         the holder of a first priority security interest in such Financed
         Vehicle, and (B) if the related Initial Financed Vehicle was
         originated in a state in which the filing of a financing statement
         under the UCC is required to perfect a security interest in motor
         vehicles, such filings or recordings have been duly made and show Onyx
         named as the original secured party under the related Initial
         Contract, and in either case, the Trustee on behalf of the Trust has
         the same rights as such secured party has or would have (if such
         secured party were still the owner of such Initial Contract) against
         all parties claiming an interest in such Initial Financed Vehicle.
         With respect to each Contract for which the Title Document has not yet
         been returned from the Registrar of Titles (or evidenced in the
         electronic title records, in the case of the State of California),
         Onyx has written evidence that such Title Documents showing Onyx as
         first lienholder have been applied for;

                 (iv)     as of the Closing Date, the Seller had good and
         marketable title to and was the sole owner of each Initial Contract to
         be transferred to the Trust pursuant to Section 2.1 free of liens,
         claims, encumbrances and rights of others and, upon transfer of such
         Contract to the Trustee pursuant to Section 2.1, the Trust will have
         good and marketable title to, will have a first priority perfected
         security interest in and will be the sole owner of such Contract free
         of liens, encumbrances and rights of others;

                 (v)      as of the Cut-Off Date, the most recent scheduled
         payment on each such Initial Contract had been made or was not
         delinquent more than 30 days and, to the best of the Seller's
         knowledge, all payments on the Initial Contract were made by the
         related Obligor;

                 (vi)     as of the Closing Date, there is no lien against the
         related Initial Financed Vehicle for delinquent taxes;

                 (vii)    as of the Closing Date, there is no right of
         rescission, offset, defense or counterclaim to the obligation of the
         Obligors to pay the unpaid principal or interest due under such
         Initial Contract; the operation of the terms of such Initial Contract
         or the exercise of any right thereunder will not render such Initial
         Contract unenforceable in whole or in part or subject such Initial
         Contract to any right of rescission, offset, defense or counterclaim,
         and the Seller has no knowledge that such right of rescission, offset,
         defense or counterclaim has been asserted or threatened;

                 (viii)   as of the Closing Date, to the best of the Seller's
         knowledge, there are no liens or claims which have been filed,
         including liens for work, labor, material or storage





                                       25
<PAGE>   31
         affecting the Initial related Financed Vehicle which are or may become
         a lien prior to or equal with the security interest granted by such
         Initial Contract;

                 (ix)     such Initial Contract, and the sale of the Initial
         Financed Vehicle sold thereunder, complied, at the time it was made,
         in all material respects with all applicable federal, state and local
         laws (and regulations thereunder), including without limitation usury,
         equal credit opportunity, fair credit reporting, truth-in-lending or
         other similar laws, the Federal Trade Commission Act, and applicable
         state laws regulating retail installment sales contracts and loans in
         general and motor vehicle retail installment contracts and loans in
         particular; and the consummation of the transactions herein
         contemplated, including, without limitation, the transfer of ownership
         of the Initial Contracts to the Trustee and the receipt of interest by
         the Certificateholders, will not violate any applicable federal, state
         or local law;

                 (x)      such Initial Contract is the legal, valid and binding
         obligation of the Obligor thereunder and is enforceable in accordance
         with its terms, except only as such enforcement may be limited by
         bankruptcy, insolvency or similar laws affecting the enforcement of
         creditors' rights generally; each party to such Initial Contract had
         full legal capacity to execute and deliver such Initial Contract and
         all other documents related thereto and to grant the security interest
         purported to be granted thereby; the terms of such Initial Contract
         have not been waived, amended or modified in any respect, except by
         instruments that are part of the Contract Documents, and no such
         waiver, amendment or modification has caused such Initial Contract to
         fail to meet all of the representations, warranties and conditions,
         set forth herein with respect thereto;

                 (xi)     such Initial Contract contains customary and
         enforceable provisions such as to render the rights and remedies of
         the holder or assignee thereof adequate for the practical realization
         against the collateral of the benefits of the security, subject, as to
         enforceability, to bankruptcy, insolvency, reorganization or similar
         laws affecting the enforcement of creditors' rights generally;

                 (xii)    as of the Closing Date, there was no default, breach,
         violation or event permitting acceleration existing under such Initial
         Contract (except payment delinquencies permitted by subparagraph (v)
         above) and no event which, with notice and the expiration of any grace
         or cure period, would constitute such a default, breach, violation or
         event permitting acceleration under such Initial Contract, and the
         Seller has not waived any such default, breach, violation or event
         permitting acceleration except payment delinquencies permitted by
         subparagraph (v) above;

                 (xiii)   at the Closing Date each related Initial Financed
         Vehicle will be covered by the Blanket Insurance Policy; each of Onyx
         and the Seller shall at all times comply with all of the provisions of
         such insurance policies applicable to it;

                 (xiv)    at the Closing Date, (a) each Initial Contract for
         each Financed Vehicle will require that the related Obligor obtain and
         maintain in effect for the Initial Financed





                                       26
<PAGE>   32
         Vehicle a comprehensive and collision insurance policy (i) in an
         amount at least equal to the lesser of (x) its maximum insurable value
         or (y) the principal amount due from the Obligor under the related
         Initial Contract, (ii) naming Onyx as a loss payee and (iii) insuring
         against loss and damage due to fire, theft, transportation, collision
         and other risks generally covered by comprehensive and collision
         coverage and (b) the Servicer shall have put in place a vendor's
         single interest insurance policy providing coverage upon repossession
         of an Initial Financed Vehicle in an amount equal to the lesser of the
         actual cash value of such Initial Financed Vehicle, the cost of repair
         or replacement for such Initial Financed Vehicle and the unpaid
         balance of the related Contract. Each of Onyx and the Seller shall at
         all times comply with all of the provisions of such insurance policies
         applicable to it;

                 (xv)     such Initial Contract was either originated by Onyx
         or acquired by Onyx from a Dealer with which it ordinarily does
         business, and no adverse selection procedures have been utilized in
         selecting such Initial Contract from all other similar contracts
         purchased or originated by Onyx;

                 (xvi)    payments under such Initial Contract have been
         applied in accordance with the Rule of 78's or the Simple Interest
         Method, as provided in the applicable Contract, and are due monthly in
         substantially equal amounts through its Maturity Date sufficient to
         fully amortize the principal balance of such Initial Contract by its
         Maturity Date;

                 (xvii)   there is only one original of such Initial Contract
         and such original, together with all other Contract Documents, is
         being held by the Trustee; provided, however, that upon the execution
         by the Trustee and the Servicer of a letter agreement revocably
         appointing the Servicer as agent of the Trustee to act as custodian of
         the Contract Documents in accordance with Section 2.4, such original
         Initial Contracts together with all other Contract Documents may be
         held by the Servicer. Each original Initial Contract has been
         segregated to show the Trust as owner thereof, unless the Insurer has
         waived the requirement for such segregation by notice in writing to
         the Trustee and the Servicer;

                 (xviii)  as of the Closing Date, the Servicer has clearly
         marked its electronic records to indicate that such Initial Contract
         is owned by the Trust;

                 (xix)    at the Cut-Off Date, no Initial Contract has a
         Maturity Date later than December 1, 2003;

                 (xx)     at the date of origination of the Initial Contract,
         the original principal balance of such Initial Contract was not
         greater than the purchase price to the Obligor (including taxes,
         warranties, licenses and related charges) of the related Initial
         Financed Vehicle;

                 (xxi)    as of the Cut-Off Date, the Seller has not received
         notice that any Obligor under such Initial Contract has filed for
         bankruptcy;





                                       27
<PAGE>   33
                 (xxii)   the Obligor of such Initial Contract was located in
         either California, Arizona, Florida, Georgia, Idaho, Illinois,
         Indiana, Nevada, New Jersey, Oregon or Washington on the date of
         origination of such Contract;

                 (xxiii)  the Recomputed Yield on such Initial Contract is at
         least equal to o%;

                 (xxiv)   such Initial Contract had an original maturity of not
         more than 72 months and such Initial Contract has a remaining maturity
         of 72 months or less;

                 (xxv)    the first payment under such Initial Contract is due
         on or before January 15, 1998;

                 (xxvi)   such Initial Contract has a remaining principal
         balance of at least $500; and

                 (xxvii)  as of the Cut-Off Date, such Initial Contract is
         secured by an Initial Financed Vehicle that has not been repossessed
         without reinstatement.

         (c) As to all of the Initial Contracts:

                 (i)      the aggregate Outstanding Principal Balance payable
         by Obligors of the Initial Contracts as of the Cut-Off Date equals the
         Original Pool Balance; and

                 (ii) as of the Cut-Off Date, approximately o% of the
         Outstanding Principal Balance of all Initial Contracts is attributable
         to loans to purchase new Financed Vehicles and approximately o% of the
         Outstanding Principal Balance of all Initial Contracts is attributable
         to used Financed Vehicles.

         (d)      to each Subsequent Contract as of the Subsequent Transfer
Date on which such Subsequent Contract is delivered to the Trustee:

                 (i)      the information pertaining to such Subsequent
         Contract set forth in the related Transfer Certificate was true and
         correct in all material respects;

                 (ii)     immediately prior to its sale and assignment to the
         Trust, such Subsequent Contract was secured by a valid and enforceable
         first priority security interest in favor  of Onyx in the related
         Subsequent Financed Vehicle, and such security interest has been duly
         perfected and is prior to all other liens upon and security interests
         in such Subsequent Financed Vehicle which now exist or may hereafter
         arise or be created (except, as to priority, for any lien for unpaid
         taxes or unpaid storage or repair charges which may arise after the
         Subsequent Transfer Date); such security interest had been assigned by
         Onyx to the Seller pursuant to the Purchase Agreement and, as of the
         Subsequent Transfer Date, has been assigned by the Seller to the Trust
         pursuant to Section 2.1(b)(i) hereof;





                                       28
<PAGE>   34
                 (iii)    (A) if the related Subsequent Financed Vehicle was
         originated in a state in which notation of a security interest on the
         Title Document (or in the electronic title records, in the case of the
         State of California) is required or permitted to perfect such security
         interest, the Title Document for such Subsequent Financed Vehicle
         shows, or, if a new or replacement Title Document is being applied for
         with respect to such Subsequent Financed Vehicle, the Title Document
         will be received within 180 days of the related Subsequent Transfer
         Date and will show Onyx named as the original secured party under the
         related Subsequent Contract as the holder of a first priority security
         interest in such Subsequent Financed Vehicle, and (B) if the related
         Subsequent Financed Vehicle was originated in a state in which the
         filing of a financing statement under the UCC is required to perfect a
         security interest in motor vehicles, such filings or recordings have
         been duly made and show Onyx named as the original secured party under
         the related Subsequent Contract, and in either case, the Trustee on
         behalf of the Trust has the same rights as such secured party has or
         would have (if such secured party were still the owner of the
         Subsequent Contract) against all parties claiming an interest in such
         Subsequent Financed Vehicle. With respect to each Subsequent Contract
         for which the Title Document has not yet been returned from the
         Registrar of Titles (or evidenced in the electronic title records, in
         the case of the State of California), Onyx has received written
         evidence from the related Dealer that such Title Documents showing
         Onyx as first lienholder have been applied for;

                 (iv)     immediately prior to the related Subsequent Transfer
         Date, the Seller had good and marketable title to and was the sole
         owner of such Subsequent Contract to be transferred to the Trust
         pursuant to Section 2.1 free of liens, claims, encumbrances and rights
         of others and, upon delivery of such Subsequent Contract to the
         Trustee, the Trust will have good and marketable title to, will have a
         first perfected security interest in and will be the sole owner of
         such Subsequent Contract free of liens, encumbrances and rights of
         others;

                 (v)      the most recent scheduled payment on each such
         Subsequent Contract has been made or is not delinquent more than 30
         days and, to the best of the Seller's knowledge, all payments on the
         Subsequent Contract have been made by the related Obligor;

                 (vi)     there is no lien against the related Subsequent
         Financed Vehicle for delinquent taxes;

                 (vii)    there is no right of rescission, offset, defense or
         counterclaim to the obligation of the Obligor to pay the unpaid
         principal or interest due under such Subsequent Contract; the
         operation of the terms of the related Subsequent Contract or the
         exercise of any right thereunder will not render such Subsequent
         Contract unenforceable in whole or in part or subject such Subsequent
         Contract to any right of rescission, offset, defense or counterclaim,
         and the Seller has no knowledge that such right of rescission, offset,
         defense or counterclaim has been asserted or threatened;





                                       29
<PAGE>   35
                 (viii)   to the best of the Seller's knowledge, there are no
         liens or claims which have been filed, including liens for work,
         labor, material or storage, affecting the Subsequent Financed Vehicle
         which are or may become a lien prior to or equal with the security
         interest granted by such Subsequent Contract;

                 (ix)     such Subsequent Contract, and the sale of the
         Subsequent Financed Vehicle sold thereunder, complied, at the time it
         was made, in all material respects with all applicable federal, state
         and local laws (and regulations thereunder), including without
         limitation usury, equal credit opportunity, fair credit reporting,
         truth-in-lending or other similar laws, the Federal Trade Commission
         Act, and applicable state laws regulating retail installment sales
         contracts and loans in general and motor vehicle retail installment
         contracts and loans in particular; and the consummation of the
         transactions herein contemplated, including, without limitation, the
         transfer of ownership of such Subsequent Contract to the Trustee and
         the receipt of interest by the Certificateholders, will not violate
         any applicable federal, state or local law;

                 (x)      such Subsequent Contract is the legal, valid and
         binding obligation of the Obligor thereunder and is enforceable in
         accordance with its terms, except only as such enforcement may be
         limited by bankruptcy, insolvency or similar laws affecting the
         enforcement of creditors' rights generally; each party to such
         Subsequent Contract had full legal capacity to execute and deliver
         such Subsequent Contract and all other documents related thereto and
         to grant the security interest purported to be granted thereby; the
         terms of such Subsequent Contract have not been waived, amended or
         modified in any respect, except by instruments that are part of the
         Contract Documents with respect to the Subsequent Contracts, and no
         such waiver, amendment or modification has caused such Subsequent
         Contract to fail to meet all of the representations, warranties and
         conditions set forth herein with respect thereto;

                 (xi)     such Subsequent Contract contains customary and
         enforceable provisions so as to render the rights and remedies of the
         holder or assignee thereof adequate for the practical realization
         against the collateral of the benefits of the security, subject, as to
         enforceability, to bankruptcy, insolvency, reorganization or similar
         laws affecting the enforcement of creditors' rights generally;

                 (xii)    there is no default, breach, violation or event
         permitting acceleration existing under such Subsequent Contract
         (except payment delinquencies permitted by subparagraph (v) above) and
         no event which, with notice and the expiration of any grace or cure
         period, would constitute such a default, breach, violation or event
         permitting acceleration under such Subsequent Contract, and the Seller
         has not waived any such default, breach, violation or event permitting
         acceleration except payment delinquencies permitted by subparagraph
         (v) above;





                                       30
<PAGE>   36
                 (xiii)   such related Subsequent Financed Vehicle is covered
         by the Blanket Insurance Policy; each of Onyx and the Seller shall at
         all times comply with all of the provisions of such insurance policies
         applicable to it;

                 (xiv)    (a) such Subsequent Contract requires the Obligor to
         obtain and maintain a comprehensive and collision insurance policy
         with respect to the related Subsequent Financed Vehicle (i) in an
         amount at least equal to the lesser of (y) its maximum insurable value
         or (z) the principal amount due from the Obligor under the related
         Subsequent Contract, (ii) naming Onyx as a loss payee and (iii)
         insuring against loss and damage due to fire, theft, transportation,
         collision and other risks generally covered by comprehensive and
         collision coverage and (b) the Servicer maintains a vendor's single
         interest insurance policy providing coverage upon repossession of a
         Subsequent Financed Vehicle in an amount equal to the lesser of the
         actual cash value of such Subsequent Financed Vehicle, the cost of
         repair or replacement for such Subsequent Financed Vehicle and the
         unpaid balance of the related Contract. Each of Onyx and the Seller
         shall at all times comply with all of the provisions of such insurance
         policies applicable to it;

                 (xv)     such Subsequent Contract was either originated by
         Onyx or acquired by Onyx from a Dealer with which it ordinarily does
         business, and no adverse selection procedures have been utilized in
         selecting such Subsequent Contract from all other similar contracts
         purchased or originated by Onyx;

                 (xvi)    payments under such Subsequent Contract have been
         applied in accordance with the Rule of 78's or the Simple Interest
         Method or originated by Onyx, as provided in the applicable Subsequent
         Contract and are due monthly in substantially equal amounts through
         its Maturity Date sufficient to fully amortize the principal balance
         of such Subsequent Contract by its Maturity Date;

                 (xvii)   there is only one original of such Subsequent
         Contract and such original, together with all other Contract Documents
         with respect to the Subsequent Contracts, upon delivery to the Trustee
         on the related Subsequent Transfer Date is being held by the Trustee;
         provided, however, that upon the execution by the Trustee and the
         Servicer of a letter agreement revocably appointing the Servicer as
         agent of the Trustee to act as custodian of the Contract Documents in
         accordance with Section 2.4, such original Initial Contracts together
         with all other Contract Documents may be held by the Servicer. Each
         original Initial Contract has been segregated to show the Trust as
         owner thereof, unless the Insurer has waived the requirement for such
         segregation by notice in writing to the Trustee and the Servicer;

                 (xviii)  the Servicer has clearly marked its electronic
         records to indicate that such Subsequent Contract is owned by the
         Trust;

                 (xix)    as of each related Subsequent Transfer Date such
         Subsequent Contract does not have a Maturity Date later than December
         1, 2003;





                                       31
<PAGE>   37
                 (xx)     at the date of origination of the Subsequent
         Contract, the original principal balance of such Subsequent Contract
         was not greater than the purchase price to the Obligor (including
         taxes, warranties, licenses and related charges) of the related
         Subsequent Financed Vehicle;

                 (xxi)    as of the Cut-Off Date, the Seller has not received
         notice that any Obligor under such Subsequent Contract has filed for
         bankruptcy;

                 (xxii)   the Obligor of such Subsequent Contract was located
         in California, Arizona, Florida, Georgia, Idaho, Illinois, Indiana,
         Nevada, New Jersey, Washington or Oregon on the date of origination of
         such Contract;

                 (xxiii)  no Subsequent Contract shall have an APR less than
         o%;

                 (xxiv)   the Recomputed Yield on each Subsequent Contract on
         any Subsequent Closing Date shall not be less than o%;

                 (xxv)    such Subsequent Contract has an original maturity of
         72 months or less and such Subsequent Contract has a remaining
         maturity of 72 months or less;

                 (xxvi)   such Subsequent Contract has a remaining principal
        balance of at least $500; and

                 (xxvii)  as of the Cut-Off Date, such Subsequent Contract is
         secured by a Subsequent Financed Vehicle that has not been repossessed
         without reinstatement.

         (e)     None of the foregoing representations and warranties shall be
    construed as, and the Seller is specifically not making, any
    representations and warranties regarding the collectibility of the
    Contracts or the future performance of the Contracts.

         (f)     The Seller has not prepared any financial statement which
    accounts for the transfer of the Trust Estate (other than the Surety Bond
    and the Prefunded Amount) hereunder to the Trust in any manner other than a
    sale of the Trust Estate (other than the Surety Bond) by it to the Trust,
    and the Seller has not in any other respect (including, but not limited to,
    for accounting and tax reporting purposes) accounted for or treated the
    transfer of the Trust Estate (other than the Surety Bond and the Prefunded
    Amount) hereunder in any manner other than as a sale and absolute
    assignment to the Trust of the Seller's full right, title and ownership
    interest in the Trust Estate (other than the Surety Bond and the Prefunded
    Amount) to the Trust.

         SECTION 2.3.       Repurchase of Certain Contracts. The
representations and warranties of the Seller set forth in Section 2.2 with
respect to each Contract and each of the conditions set forth in Section 2.1(c)
and Section 2.1(h) with respect to each transfer of Subsequent Contracts shall
survive delivery of the Contract Documents to the Trustee and shall continue
until the termination of this Agreement. Upon discovery by the Seller, the
Servicer, the Insurer or a





                                       32
<PAGE>   38
Responsible Officer of the Trustee that any of such representations or
warranties was incorrect as of the time made or that any of the Contract
Documents relating to any such Contract has not been properly executed by the
Obligor or contains a material defect or has not been received by the Trustee
(or the Servicer in its capacity as custodian of the Trustee), such Person
making such discovery shall give prompt notice to the other such Persons. If
any such defect, incorrectness or omission materially and adversely affects the
interest of the Certificateholders, the Trustee or the Insurer, the Seller
shall cure the defect or eliminate or otherwise cure the circumstances or
condition in respect of which such representation or warranty was incorrect as
of the time made; provided that if the Seller is unable to do so by the last
day of the Collection Period following the Collection Period (or, if the Seller
elects, the last day of such Collection Period) during which the Seller becomes
aware of or receives written notice from the Trustee, the Insurer or the
Servicer of such defect, incorrectness or omission, it shall repurchase such
Contract on the last day of such Collection Period from the Trust at the
Repurchase Amount in the manner set forth in Section 4.4. Upon any such
repurchase, the Trustee on behalf of the Trust shall execute and deliver such
instruments of transfer or assignment, in each case without recourse, as shall
be necessary to vest in the Seller any Contract purchased hereunder. The sole
remedy of the Trustee, the Trust, or the Certificateholders with respect to a
breach of the Seller's representations and warranties pursuant to Section 2.2
or non-compliance with Section 2.1(c) or Section 2.1(h) shall be to require the
Seller to repurchase Contracts pursuant to this Section provided, however, that
the Seller shall indemnify the Trustee, its officers, directors, agents and
employees, the Insurer, the Trust and the Certificateholders against all costs,
expenses, losses, damages, claims and liabilities, including reasonable fees
and expenses of counsel, which may be asserted against or incurred by any of
them as a result of third-party claims arising out of the events or facts
giving rise to such breach.

         SECTION 2.4. Duties and Appointment of Custodian.

         (a)     Duties of Custodian. The Trustee, and any Custodian appointed
pursuant to Section 2.4(b), while acting as Custodian shall:

                 (i)      segregate and maintain continuous custody of the
         Contract Documents in secure and fireproof facilities in accordance
         with customary standards for such custody;

                 (ii)     with respect to the Contract Documents, (A) act
         exclusively as the Custodian for the benefit of the Certificateholders
         and for the Insurer and (B) hold all Contract Documents for the
         exclusive use (notwithstanding Sections 2.4(a)(iii) and 2.4(a)(iv)
         below) and for the benefit of the Certificateholders and the Insurer;

                 (iii)    to the extent the Servicer directs the Custodian in
         writing, the Custodian shall deliver certain specified Contract
         Documents to the Servicer to enable the Servicer to service the
         Contracts pursuant to the Agreement. At such time as the Servicer
         returns such Contract Documents to the Custodian, the Servicer shall
         provide written notice of such return to the Custodian. The Custodian
         shall acknowledge receipt of the returned materials by signing the
         Servicer's notice and shall promptly send copies of such
         acknowledgment or receipt to the Servicer;





                                       33
<PAGE>   39
                 (iv)     upon reasonable prior written notice, permit the
         Servicer and the Insurer to examine the Contract Documents in the
         possession, or under the control, of the Custodian; and

                 (v)      at its own expense, maintain at all times while
         acting as Custodian, and keep in full force and effect (A) fidelity
         insurance, (B) theft of documents insurance, (C) fire insurance, and
         (d) forgery insurance. All such insurance shall be in amounts, with
         standard coverage and subject to deductibles, as are customary for
         similar insurance typically maintained by banks that act as custodian
         in similar transactions.

         (b)     Appointment of Custodian. As of the Closing Date, the Trustee
    shall be the Custodian of the Contract Files; provided, however, that upon
    the execution by the Trustee of a letter agreement with the consent of the
    Insurer (such consent not to be unreasonably withheld) substantially in the
    form of Exhibit A attached hereto (the "Appointment of Custodian"),
    revocably appointing the Servicer or such other entity acceptable to the
    Insurer as agent of the Trustee to act as Custodian (the "Successor
    Custodian") of the Contract Documents, such Successor Custodian shall be so
    appointed and shall from the effective date of such Appointment of
    Custodian retain custody of the Contract Documents and any and all other
    documents relating to a Contract or the related Obligor or Financed
    Vehicle. As of the effective date of such Appointment of Custodian, the
    Contract Documents and any and all other documents relating to a Contract
    or the related Obligor or Financed Vehicle will be delivered to the
    Successor Custodian in its capacity as agent of the Trustee acting as
    Custodian.

         If the Servicer is appointed Successor Custodian as of the date
specified in the Appointment of Custodian, the Servicer shall maintain the
Contract Documents held by it in a file area physically separate from the other
installment sales contracts owned or serviced by it or any of its Affiliates,
which area shall be clearly marked to indicate the Trust as the owner of, and
the Insurer as the holder of the security interest in, the Contract Documents;
except that if the Insurer has waived the requirement for such segregation by
notice in writing to the Trustee and the Servicer, such file area may contain
contract documents for other installment sales contracts serviced by the
Servicer.

         SECTION 2.5.       Duties of Servicer Relating to the Contracts.

         (a)     Safekeeping. The Servicer, in its capacity as servicer, shall
    maintain such accurate and complete accounts, records, and computer systems
    pertaining to each Contract File as shall enable the Trustee to comply with
    this Agreement. In performing its duties as servicer the Servicer shall act
    with reasonable care, using that degree of skill and attention that the
    Servicer exercises with respect to the files relating to all comparable
    automobile contracts that the Servicer services for itself or others. The
    Servicer shall: (i) conduct, or cause to be conducted, periodic physical
    inspections of the Contract Files (other than the Contract Documents,
    unless the Servicer is acting as Custodian) held by it under this
    Agreement, and of the related accounts, records, and computer systems; (ii)
    maintain the Contract Files in





                                       34
<PAGE>   40
    such a manner as shall enable the Trustee and the Insurer to verify the
    accuracy of the Servicer's record keeping; (iii) promptly report to the
    Trustee and the Insurer any failure on its part to hold the Contract Files
    (other than the Contract Documents, unless the Servicer is acting as
    Custodian) and maintain its accounting, records, and computer systems as
    herein provided; and (iv) promptly take appropriate action to remedy any
    such failure.

         (b)     Maintenance of and Access to Records. The Servicer shall
    maintain each Contract File (other than the Contract Documents, unless the
    Servicer is acting as Custodian) at the address of the Servicer set forth
    in Section 11.5, or at such other location as shall be specified to the
    Trustee and the Insurer by 30 days' prior written notice. The Servicer
    shall permit the Trustee or the Insurer or their duly authorized
    representatives, attorneys, or auditors to inspect the Contract Files and
    the related accounts, records, and computer systems maintained by the
    Servicer at such times as the Trustee or the Insurer may request.

         (c)     Release of Documents. If the Servicer is acting as Custodian
    pursuant to Section 2.4, upon instruction from the Trustee (a copy of which
    shall be furnished to the Insurer), the Servicer shall release any document
    in the Contract Files to the Trustee, the Trustee's agent, or the Trustee's
    designee, as the case may be, at such place or places as the Trustee may
    designate, as soon as practicable.

         (d)     Monthly Reports.  On the Servicer Report Date of each month,
    commencing with the month of the Closing Date, the Servicer shall deliver
    to the Trustee and Insurer, a certificate of a Servicing Officer stating
    (i) the Contract Number and outstanding principal balance of each Contract
    that has become a Liquidated Contract since the Business Day immediately
    preceding the date of the last certificate delivered pursuant to this
    Section 2.5(d) (or since the Closing Date in the case of the first such
    certificate); (ii) that all proceeds received in respect of such Contract
    have been deposited in or credited to the Collection Account or Payahead
    Account as required by Section 4.2; (iii) that, if such Contract has been
    the subject of a Full Prepayment pursuant to clause (a) of the definition
    of the term "Full Prepayment" or is a Liquidated Contract pursuant to
    clause (iii) of the definition of the term "Liquidated Contract," all
    proceeds received in respect thereof have been deposited in or credited to
    the Collection Account or Payahead Account in accordance with Section 4.2;
    (iv) that, if such Contract has been the subject of a Full Prepayment
    pursuant to clause (b) of the definition of the term "Full Prepayment," the
    correct Repurchase Amount has been deposited in or credited to the
    Collection Account in accordance with Sections 2.3 or 3.7; (v) that, if
    such Contract is a Liquidated Contract pursuant to clause (ii) of the
    definition of the term "Liquidated Contract," there have been deposited in
    or credited to the Collection Account or Payahead Account the related Net
    Liquidation Proceeds in accordance with Section 4.2; and (vi) that the
    Trustee is authorized to release such Contract and the related Contract
    Documents as provided herein.

         (e)     Schedule of Title Documents. The Servicer shall deliver to the
    Trustee and the Insurer (i) within 60 days of the Closing Date, a schedule
    of Title Documents which as of the Closing Date did not show the Servicer
    as first lienholder and (ii) within 180 days of the Closing Date as to the
    Initial Contracts and as of the related Subsequent Transfer Date with





                                       35
<PAGE>   41
    respect to the Subsequent Contracts, a schedule of Title Documents which as
    of the date prior to such delivery do not show the Servicer as first
    lienholder and as to which the Seller is obligated to repurchase pursuant
    to the provisions hereof.

         (f)     Electronic Marking of Contracts; Possession. The Servicer
    shall cause the electronic record of the Contracts maintained by it to be
    clearly marked to indicate that the Contracts have been sold to the Trust
    and shall not in any way assert or claim an ownership interest in the
    Contracts. It is intended that by the Servicer's and the Seller's agreement
    pursuant to Section 2.4, Section 2.5 hereof and the Appointment of
    Custodian, the Trustee on behalf of the Trust shall be deemed to have
    possession of the Contract Documents for purposes of Section 9-305 of the
    UCC of the State in which the Contract Documents are located.

         SECTION 2.6. Instructions; Authority to Act. The Servicer shall be
deemed to have received proper instructions (a copy of which shall be furnished
to the Insurer) with respect to the Contract Files upon its receipt of written
instructions signed by a Responsible Officer of the Trustee.

         SECTION 2.7. Indemnification. The Servicer, as custodian, shall
indemnify the Trustee and its officers, directors, agents and employees, the
Insurer, the Trust and the Certificateholders for any and all liabilities,
obligations, losses, compensatory damages, payments, costs, or expenses of any
kind whatsoever (including the reasonable fees and expenses of counsel) that
may be imposed on, incurred, or asserted against the Trustee, the Insurer, the
Trust and the Certificateholders as the result of any act or omission in any
way relating to the maintenance and custody by the Servicer of the Contract
Files, or the failure of the Servicer to perform its duties and service the
Contracts in compliance with the terms of this Agreement; provided, however,
that the Servicer shall not be liable for any portion of any such amount
resulting from the willful misfeasance, bad faith, or gross negligence of the
Trustee. The Servicer shall also indemnify and hold harmless the Trust, the
Trust Estate, the Trustee and the Certificateholders against any taxes that may
be asserted at any time against any of them with respect to the Contracts,
including any sales, gross receipts, general corporation, personal property,
privilege or license taxes (but exclusive of federal or other income taxes
arising out of payments on the Contracts) and the costs and expenses in
defending against such taxes. The Servicer shall immediately notify the Trustee
if a claim is made by a third party with respect to the Contracts, shall
assume, with the consent of the Trustee, the defense of any such claim and
shall pay all expenses in connection therewith, including counsel fees, and
shall promptly pay, discharge and satisfy any judgment or decree which may be
entered against it, the Trustee or the Trust with respect to the Contracts.

         SECTION 2.8. Effective Period and Termination. The Trustee's
appointment as Custodian shall become effective as of the Closing Date and
shall continue in full force and effect until the earlier of (i) the execution
of the Appointment of Custodian, (ii) the removal of the Trustee pursuant to
Section 9.10 or (iii) the Final Distribution Date. Following the execution of
the Appointment of Custodian, the Successor Custodian's appointment as
Custodian shall continue in full force and effect until terminated under this
Section 2.8 or until the Final Distribution Date, whichever occurs first. If
Onyx shall resign as Servicer under Section 7.4 or if





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<PAGE>   42
all of the rights and obligations of the Servicer shall have been terminated
under Section 8.1, the appointment of the Servicer as Custodian may be
terminated by the Trustee, the Insurer, or by the Holders of Certificates
evidencing in the aggregate at least 25% of  the Pool/Prefunding Balance, in
the same manner as the Trustee, the Insurer, or such Holders may terminate the
rights and obligations of the Servicer under Section 8.1 (but no occurrence of
an Event of Default shall be a precondition to termination). As soon as
practicable after any termination of such appointment, the Custodian shall, at
its own expense, deliver or cause the delivery of the Contract Files to the
Trustee or the Trustee's agent at such place or places as the Trustee may
reasonably designate and shall cooperate in good faith to effect such delivery.
The foregoing notwithstanding, if the Servicer is acting as Custodian, the
Servicer shall, at the request of the Insurer, redeliver the Contract Documents
to the Trustee in the event that such redelivery is required by any Rating
Agency to consider the Certificates investment grade without consideration of
the Surety Bond.

         SECTION 2.9.       Nonpetition Covenant.

         (a)     Neither the Seller nor the Servicer shall petition or
    otherwise invoke the process of any court or government authority for the
    purpose of commencing or sustaining a case against the Trust under any
    federal or state bankruptcy, insolvency or similar law or appointing a
    receiver, liquidator, assignee, trustee, custodian, sequestrator or other
    similar official of the Trust or any substantial part of its property, or
    ordering the winding up or liquidation of the affairs of the Trust.

         (b)     The Servicer shall not, nor cause the Seller to, petition or
    otherwise invoke the process of any court or government authority for the
    purpose of commencing or sustaining a case against the Seller under any
    federal or state bankruptcy, insolvency or similar law or appointing a
    receiver, liquidator, assignee, trustee, custodian, sequestrator or other
    similar official of the Seller or any substantial part of its property, or
    ordering the winding up or liquidation of the affairs of the Seller.

         SECTION 2.10. Collecting Title Documents Not Delivered at the Closing
Date or Subsequent Closing Date. In the case of any Initial Contract or
Subsequent Contract in respect of which, in place of a Title Document, the
Trustee received on the Closing Date or Subsequent Closing Date, as applicable,
written evidence from the Dealer selling the related Initial Financed Vehicle
or Subsequent Financed Vehicle, as applicable, or Onyx that the Title Document
for such Financed Vehicle showing Onyx as first lienholder has been applied for
from the Registrar of Titles, the Servicer shall use its best efforts to
collect (or, in the case of the State of California, to obtain evidence in the
electronic title records of) such Title Document from the Registrar of Titles
as promptly as possible. If such Title Document showing the Servicer as first
lienholder is not received (or, in the case of the State of California,
verified in the electronic title records) by the Servicer within 180 days after
the Closing Date with respect to the Initial Contracts or after each Subsequent
Closing Date with respect to the Subsequent Contracts covered thereby, as
applicable, then the representation and warranty in Section 2.2(b)(iii) as to
such Initial Contracts and in Section 2.2(d)(iii) as to such Subsequent
Contracts, as applicable, in respect of such Contract shall be deemed to have
been incorrect in a manner that materially and adversely affects





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<PAGE>   43
the Certificateholders and the Seller shall be obligated to repurchase such
Initial Contract or Subsequent Contract in accordance with Section 2.3.

                                  ARTICLE III

                   Administration and Servicing of Contracts

         SECTION 3.1. Duties of Servicer. The Servicer shall manage, service,
administer, and make collections on the Contracts. The Servicer agrees that its
servicing of the Contracts shall be carried out in accordance with reasonable
care and, to the extent more exacting, the procedures used by the Servicer in
respect of such contracts serviced by it for its own account; provided,
however, that, subject to Section 3.2 as to extensions, the Servicer shall not
release or waive the right to collect the unpaid balance of any Contract. The
Servicer's duties shall include collection and posting of all payments,
responding to inquiries of Obligors on the Contracts, investigating
delinquencies, sending payment coupons to Obligors, reporting tax information
to Obligors, accounting for collections, furnishing monthly and annual
statements to the Trustee and the Insurer with respect to distributions and the
preparation of U.S. Grantor Trust Tax Returns (Form 1041) for the Trustee to
sign and file on an annual basis, based on a tax year for the Trust that is the
calendar year and any other tax forms required by any federal, state or local
tax authority including with respect to original issue discount, if any. The
Servicer shall have, subject to the terms hereof, full power and authority,
acting alone, and subject only to the specific requirements and prohibitions of
this Agreement, to do any and all things in connection with such managing,
servicing, administration, and collection that it may deem necessary or
desirable; provided, however, that the Servicer shall commence repossession
efforts in respect of any Financed Vehicle any payment on the related Contract
of which is four or more months delinquent. Without limiting the generality of
the foregoing, but subject to the provisions of this Agreement, the Servicer is
authorized and empowered by the Trustee to execute and deliver, on behalf of
itself, the Trust, the Insurer, the Certificateholders, or the Trustee or any
of them, any and all instruments of satisfaction or cancellation, or partial or
full release or discharge, and all other comparable instruments, with respect
to the Contracts or to the Financed Vehicles. The Trustee shall furnish the
Servicer any documents necessary or appropriate to enable the Servicer to carry
out its servicing and administrative duties hereunder. The Servicer may engage
agents and subservicers to fulfill its duties hereunder; provided, however,
that the Servicer shall remain at all times personally liable for the acts (and
failures to act) of such agents and subservicers.

         On or prior to the Closing Date, the Servicer shall deliver to the
Insurer and the Trustee a list of Servicing Officers of the Servicer involved
in, or responsible for, the administration and servicing of the Contracts,
which list shall from time to time be updated by the Servicer on request of the
Trustee or the Insurer.

         On the Closing Date, the Servicer shall deposit in the Collection
Account (i) all installments of Monthly P&I due on or after the Cut- Off Date
and received by the Servicer at least two Business Days prior to the Closing
Date; (ii) the proceeds of each Full Prepayment of any Contract and all partial
prepayments on Simple Interest Contracts received by the Servicer after the
Cut-Off Date and at least two Business Days prior to the Closing Date; and
(iii) all Net





                                       38
<PAGE>   44
Liquidation Proceeds and Net Insurance Proceeds realized in respect of a
Financed Vehicle at least two Business Days prior to the Closing Date.

         Subject to Section 4.2(a) respecting deposits in the Payahead Account,
the Servicer shall deposit in or credit to the Collection Account within two
Business Days of receipt all collections of Monthly P&I due after the Cut-Off
Date received by it on the Contracts together with the proceeds of all Full
Prepayments on all Contracts and all partial prepayments on Simple Interest
Contracts, and any accompanying interest. The Servicer shall likewise deposit
in the Collection Account within two Business Days of receipt all Net
Liquidation Proceeds and Net Insurance Proceeds. As of the last day of each
Collection Period, all amounts received in each Collection Period shall be
applied by the Servicer with respect to each Contract, first, to the Servicer
as additional servicing compensation any amounts due for late fees, extension
fees or similar charges, second to the payment of Monthly P&I, and third, in
the case of Rule of 78's Contracts, to the Payahead Account. The foregoing
requirements for deposit in the Collection Account are exclusive, it being
understood that collections in the nature of late payment charges or extension
fees may, but need not be deposited in the Collection Account and may be
retained by the Servicer as additional servicing compensation.

         With respect to payments of Monthly P&I made by Obligors to the
Servicer's lock box, the Servicer shall direct the Person maintaining the lock
box to deposit the amount collected on the Contracts within one Business Day to
the Clearing Account. Such amounts shall be withdrawn from the Clearing Account
and deposited in the Collection Account no later than the next following
Business Day.

         In order to facilitate the servicing of the Contracts by the Servicer,
the Servicer shall retain, subject to and only to the extent permitted by the
provisions of this Agreement, all collections on the Contracts prior to the
time they are remitted or credited, in accordance with such provisions, to the
Collection Account or the Payahead Account, as the case may be. The Servicer
acknowledges that the unremitted collections on the Contracts are part of the
Trust Estate and the Servicer agrees to act as custodian and bailee of the
Trustee and the Insurer in holding such monies and collections. The Servicer
agrees, for the benefit of the Trustee, the Trust, the Certificateholders and
the Insurer, to act as such custodian and bailee, and to hold and deal with
such monies and such collections, as custodian and bailee for the Trustee and
the Insurer, in accordance with the provisions of this Agreement.

         The Servicer shall retain all data (including, without limitation,
computerized records) relating directly to or maintained in connection with the
servicing of the Contracts at the address of the Servicer set forth in Section
11.05, or, upon 15 days' notice to the Insurer and the Trustee, at such other
place where the servicing offices of the Servicer are located, and shall give
the Trustee and the Insurer access to all data at all reasonable times, and,
while an Event of Default shall be continuing, the Servicer shall, on demand of
the Trustee or the Insurer deliver or cause to be delivered to the Trustee and
the Insurer all data (including, without limitation, computerized records and,
to the extent transferable, related operating software) necessary for the
servicing of the Contracts and all monies collected by it and required to be
deposited in or credited to the Collection Account or the Payahead Account, as
the case may be.





                                       39
<PAGE>   45
         SECTION 3.2. Collection of Contract Payments. The Servicer shall use
its best efforts to collect all payments called for under the terms and
provisions of the Contracts as and when the same shall become due and shall use
its best efforts to cause each Obligor to make all payments in respect of his
or her Contract to the Servicer. Consistent with the foregoing, the Servicer
may in its discretion (i) waive any late payment charges in connection with
delinquent payments on a Contract or prepayment charges and (ii) in order to
work out a default or an impending default due to the financial condition of an
Obligor, grant up to three extensions of the Due Date of any payment for
periods of 30 days or less, such that the Maturity Date of no Contract shall,
under any circumstances, extend more than 90 days past the originally scheduled
date of the last payment on such Contract but in no event beyond the Final
Distribution Date. The Servicer shall not extend the Maturity Date of a
Contract except as provided in clause (ii) of the preceding sentence. Except as
explicitly permitted by this paragraph, the Servicer shall not change any
material term of a Contract, including but not limited to the interest rate,
the payment amounts or due dates, or the property securing such Contract.

         SECTION 3.3. Realization Upon Contracts. The Servicer shall use its
best efforts, consistent with the servicing standard specified in Section 3.1,
to repossess or otherwise convert the ownership of the Financed Vehicle
securing any Contract as to which no satisfactory arrangements can be made for
collection of delinquent payments. Such servicing procedures may include
reasonable efforts to realize upon any recourse to Dealers and selling the
Financed Vehicle at public or private sale. In connection with such
repossession or other conversion, the Servicer shall follow such practices and
procedures as it shall deem necessary or advisable and as shall be normal and
usual for prudent holders of retail installment sales contracts and as shall be
in compliance with all applicable laws, and, in connection with the
repossession of any Financed Vehicle or any contract in default, may commence
and prosecute any proceedings in respect of such Contract in its own name or,
if the Servicer deems it necessary, in the name of the Trust or on behalf of
the Trust. The Servicer's obligations under this Section are subject to the
provision that, in the case of damage to a Financed Vehicle from an uninsured
cause, the Servicer shall not be required to expend its own funds in repairing
such motor vehicle unless it shall determine (i) that such restoration will
increase the proceeds of liquidation of the related Contract, after
reimbursement to itself for such expenses and (ii) that such expenses will be
recoverable by it either as Liquidation Expenses or as expenses recoverable
under an applicable insurance policy. The Servicer shall be responsible for all
other costs and expenses incurred by it in connection with any action taken in
respect of a Defaulted Contract; provided, however, that it shall be entitled
to reimbursement of such costs and expenses to the extent they constitute
Liquidation Expenses or expenses recoverable under an applicable insurance
policy. All Net Liquidation Proceeds and Net Insurance Proceeds shall be
deposited directly in or credited to the Collection Account (without deposit in
any intervening account) to the extent required by Section 4.2.

         SECTION 3.4. Insurance. The Servicer shall cause to be maintained the
Blanket Insurance Policy with the Trustee as the named payee thereunder with
respect to the Contracts.

         SECTION 3.5. Maintenance of Security Interests in Financed Vehicles.
The Servicer shall take such steps as are necessary to maintain continuous
perfection and priority of the





                                       40
<PAGE>   46
security interest created by each Contract in the related Financed Vehicle,
including but not limited to, obtaining the execution by the related Obligor
and the recording, registering, filing, re-recording, re-registering, and
refiling of all security agreements, financing statements, continuation
statements or other instruments as are necessary to maintain the security
interest granted by such Obligor under each respective Contract. The Trustee
hereby authorizes the Servicer to take such steps as are necessary to
re-perfect such security interest on behalf of the Trust in the event of the
relocation of a Financed Vehicle or for any other reason. In the event that the
assignment of a Contract to the Trust is insufficient, without a notation on
the related Financed Vehicle's certificate of title (or, in the case of the
State of California, the electronic title record), or without fulfilling any
additional administrative requirements under the laws of the state in which the
Financed Vehicle is located, to grant to the Trust a perfected security
interest in the related Financed Vehicle, the Servicer hereby agrees that the
Servicer's listing as the secured party on the certificate of title (or, in the
case of the State of California, the electronic title record) is deemed to be
in its capacity as agent of the Trust and further agrees to hold such
certificate of title (or, in the case of the State of California, the
electronic title record) as the Trustee's agent and custodian; provided that
the Servicer shall not make, nor shall the Trustee or Certificateholders have
the right to require that the Servicer make, any such notation on the related
Financed Vehicles' certificate of title (or, in the case of the State of
California, the electronic title record) or fulfill any such additional
administrative requirement of the laws of the state in which a Financed Vehicle
is located.

         SECTION 3.6. Covenants, Representations and Warranties of Servicer.
The Servicer hereby makes the following covenants, representations and
warranties on which the Trustee shall rely accepting the Contracts in trust and
authenticating the Certificates.

         (a)      The Servicer covenants as to the Contracts:

                 (i)      the Financed Vehicle securing each Contract shall not
         be released from the lien granted by the Contract in whole or in part,
         except as contemplated herein;

                 (ii)     the Servicer shall not impair the rights of the Trust
         in the Contracts;

                 (iii)    the Servicer shall not increase the number of
         payments under a Contract, nor increase the amount financed under a
         Contract, nor extend or forgive payments on a Contract, except as
         provided in Section 3.2; and

                 (iv)     the Servicer may consent to the sale or transfer by
         an Obligor of any Financed Vehicle if the original Obligor under the
         related Contract remains liable under such Contract and the transferee
         assumes all of the Obligor's obligations thereunder.

         (b)      The Servicer represents and warrants as of the Closing Date:

                 (i)      the Servicer (1) has been duly organized, is validly
         existing and in good standing as a corporation organized and existing
         under the laws of the State of Delaware, (2) has qualified to do
         business as a foreign corporation and is in good standing in each





                                       41
<PAGE>   47
         jurisdiction where the character of its properties or the nature of
         its activities makes such qualification necessary, and (3) has full
         power, authority and legal right to own its property, to carry on its
         business as presently conducted, and to enter into and perform its
         obligations under this Agreement;

                 (ii)     the execution and delivery by the Servicer of this
         Agreement are within the corporate power of the Servicer and have been
         duly authorized by all necessary corporate action on the part of the
         Servicer. Neither the execution and delivery of this Agreement, nor
         the consummation of the transactions herein contemplated, nor
         compliance with the provisions hereof, will conflict with or result in
         a breach of, or constitute a default under, any of the provisions of
         any law, governmental rule, regulation, judgment, decree or order
         binding on the Servicer or its properties or the Certificate of
         Incorporation or Bylaws of the Servicer, or any of the provisions of
         any indenture, mortgage, contract or other instrument to which the
         Servicer is a party or by which it is bound or result in the creation
         or imposition of any lien, charge or encumbrance upon any of its
         property pursuant to the terms of any such indenture, mortgage,
         contract or other instrument;

                 (iii)    other than consents that have been obtained prior to
         the Closing Date, the Servicer is not required to obtain the consent
         of any other party or any consent, license, approval or authorization,
         or registration or declaration with, any governmental authority,
         bureau or agency in connection with the execution, delivery,
         performance, validity or enforceability of this Agreement;

                 (iv)     this Agreement has been duly executed and delivered
         by the Servicer and, assuming the due authorization, execution and
         delivery thereof by the Trustee, constitutes a legal, valid and
         binding obligation of the Servicer enforceable against the Servicer in
         accordance with its terms (subject to applicable bankruptcy and
         insolvency laws and other similar laws affecting the enforcement of
         creditors' rights generally);

                 (v)      there are no actions, suits or proceedings pending
         or, to the knowledge of the Servicer, threatened against or affecting
         the Servicer, before or by any court, administrative agency,
         arbitrator or governmental body with respect to any of the
         transactions contemplated by this Agreement, or which will, if
         determined adversely to the Servicer, materially and adversely affect
         it or its business, assets, operations or condition, financial or
         otherwise, or adversely affect the Servicer's ability to perform its
         obligations under this Agreement. The Servicer is not in default with
         respect to any order of any court, administrative agency, arbitrator
         or governmental body so as to materially and adversely affect the
         transactions contemplated by the above-mentioned documents; and

                 (vi)     the Servicer has obtained or made all necessary
         consents, approvals, waivers and notifications of creditors, lessors
         and other nongovernmental persons, in each case, in connection with
         the execution and delivery of this Agreement, and the consummation of
         all the transactions herein contemplated.





                                       42
<PAGE>   48
         SECTION 3.7. Purchase of Contracts Upon Breach of Covenant. The
Servicer or the Trustee shall inform the other party and the Insurer promptly,
in writing, upon the discovery of any breach of the representation and
warranties set forth in Section 3.6 and the covenants set forth in Section 3.5.
Unless the breach shall have been cured within 30 days following such discovery
or receipt of notice of such breach, the Servicer shall purchase any Contract
materially and adversely affected by such breach from the Trust. As
consideration for the Contract, the Servicer shall remit the Repurchase Amount
on the Business Day preceding the Servicer Report Date next succeeding the end
of such 30-day cure period in the manner specified in Section 4.4. The sole
remedy of the Trustee, the Trust, or the Certificateholders with respect to a
breach pursuant to Section 3.5 (other than as specified therein) and Section
3.6 shall be to require the Servicer to purchase Contracts pursuant to this
Section 3.7; provided, however, that the Servicer shall indemnify the Trustee
and its officers, directors, agents and employees, the Insurer, the Trust and
the Certificateholders against all costs, expenses, losses damages, claims and
liabilities, including reasonable fees and expenses of counsel, which may be
asserted against or incurred by any of them as a result of third-party claims
arising out of the events or facts giving rise to such breach.

         Any successor Servicer appointed pursuant to Section 8.2 shall not be
obligated to purchase Contracts pursuant to this Section 3.7 with respect to
any breaches by any prior Servicer.

         SECTION 3.8. Servicing Compensation. As compensation for the
performance of its obligations under this Agreement and subject to the terms of
this Section 3.8, the Servicer shall be entitled to receive on each
Distribution Date the Servicing Fee in respect of each Contract that was
Outstanding at the beginning of the Collection Period ending immediately prior
to such Distribution Date. As servicing compensation in addition to the
Servicing Fee, the Servicer shall be entitled (i) to retain all late payment
charges, extension fees and similar items paid in respect of Contracts, (ii) to
receive, in respect of each Rule of 78's Contract that is prepaid in full prior
to its Maturity Date, the amount by which the outstanding principal balance of
such Contract (determined in accordance with the Rule of 78's method) exceeds
the Scheduled Balance of such Contract at the time of such prepayment and (iii)
to receive all investment earnings on funds credited to the Collection Account;
provided, however, that the Servicer agrees that each amount payable to it
pursuant to clause (ii) of this Section 3.8 shall be deposited in the Spread
Account and applied in accordance with the Insurance Agreement. The Servicer
shall pay all expenses incurred by it in connection with its servicing
activities hereunder and shall not be entitled to reimbursement of such
expenses except to the extent provided in Section 3.3.

         SECTION 3.9. Reporting by the Servicer.

         (a)     No later than 3:00 p.m. New York City time on each Servicer
    Report Date, the Servicer shall transmit to the Trustee and the Insurer a
    statement (the "Distribution Date Statement") setting forth with respect to
    the next succeeding Distribution Date:

                 (i)      the Interest Distribution for such Distribution Date;





                                       43
<PAGE>   49
                 (ii)     the Principal Distribution for such Distribution
         Date;

                 (iii)    the Certificate Distribution Amount for such
         Distribution Date;

                 (iv)     the Premium payable to the Insurer and the amount to
         be deposited in the Spread Account;

                 (v)      the aggregate Servicing Fee with respect to the
         Contracts for the related Collection Period;

                 (vi)     the number of, and aggregate amount of monthly
         principal and interest payments due on, the Contracts which are
         delinquent as of the end of the related Collection Period presented on
         a 30-day, 60-day and 90-day basis;

                 (vii)    the Collection Account Amount Available and the
         Policy Claim Amount, if any, for such Distribution Date;

                 (viii)   during the Funding Period, the remaining Prefunded
         Amount and the Negative Carry Amount, if any, on deposit in the
         Prefunding Account for the related Collection Period;

                 (ix)     for the first Distribution Date that is on or
         immediately following the end of the Funding Period, if any, the
         amount of the Prefunded Amount that has not been used to purchase
         Subsequent Contracts and is being distributed as a payment of
         principal to Certificateholders;

                 (x)      the aggregate amount of Liquidation Proceeds received
         for Defaulted Contracts;

                 (xi)     the net credit losses for the Collection Period;

                 (xii)    the number and net outstanding balance of Contracts
         for which the Financed Vehicle has been repossessed;

                 (xiii)   the Pool Balance; and

         (b)     the amount of claims, if any, made on the Surety Bond.

Each such Distribution Date Statement shall be accompanied by an Officers'
Certificate of the Servicer, which Officers' Certificate shall state that the
computations reflected in such statement were made in conformity with the
requirements of this Agreement.





                                       44
<PAGE>   50
         (c)     On each Servicer Report Date, the Servicer shall render to the
    Trustee and the Insurer a report, in respect of the immediately preceding
    Collection Period, setting forth the following:

                 (i)      the aggregate amount, if any, paid by or due from it
         for the purchases of Contracts which the Seller or the Servicer has
         become obligated to repurchase or purchase pursuant to Sections 2.3 or
         3.7;

                 (ii)     the net amount of funds which have been deposited in
         or credited to the Collection Account or the Payahead Account in
         respect of such Collection Period (including amounts, if any,
         collected during the next preceding Collection Period and deposited in
         the Payahead Account pursuant to Section 4.1) after giving effect to
         all permitted deductions therefrom pursuant to Section 4.2;

                 (iii)    with respect to each Contract that became a
         Liquidated Contract during the Collection Period, the following
         information:

                          (A)     its Contract Number;

                          (B)     the effective date as of which such Contract
             became a Liquidated Contract;

                          (C)     its Monthly P&I and Scheduled Balance as of
             the prior Distribution Date (or as of the Closing Date in the case
             of the first Distribution Date); and

                          (D)     the amount of the Net Liquidation Proceeds or
             Net Insurance Proceeds;

                 (iv)     with respect to each Contract which was the subject
         of a Full Prepayment during such Collection Period, the following
         information:

                          (A)     its Contract Number; and

                          (B)     the date of such Full Prepayment;

                 (v)      the Contract Numbers, Monthly P&I, Scheduled Balances
         and Maturity Dates of all Contracts which became Defaulted Contracts
         during such Collection Period;

                 (vi)     the Capitalized Interest Amount with respect to such
         Collection Period and the amount, if any, withdrawn from the
         Capitalized Interest Account in payment thereof;

                 (vii)    during the Funding Period, the remaining Prefunded
         Amount on deposit in the Prefunding Account and the Negative Carry
         Amount for the related Collection Period;





                                       45
<PAGE>   51
                 (viii)   for the first Distribution Date that is on or
         immediately following the end of the Funding Period, if any, the
         amount of the Prefunded Amount that has not been used to purchase
         Subsequent Contracts and is being distributed as a payment of
         principal to Certificateholders;

                 (ix)     any other information relating to the Contracts
         reasonably requested by the Trustee or the Insurer; and

                 (x)      the amount of Net Liquidation Proceeds and Net
         Insurance Proceeds which have been deposited in or credited to the
         Collection Account in respect of the Collection Period ending
         immediately prior to such Servicer Report Date and the cumulative
         amount of Net Liquidation Proceeds and Net Insurance Proceeds
         deposited in or credited to the Collection Account during the
         preceding Collection Periods.

         SECTION 3.10. Annual Statement as to Compliance.

         (a)     The Servicer shall deliver to the Trustee and the Insurer, on
    or before March 15, 1998 and on or before March 15 of each fiscal year
    thereafter, an Officers' Certificate of the Servicer stating that (i) a
    review of the activities of the Servicer during the preceding fiscal year
    (since the Closing Date in the case of the first of such Officers'
    Certificates required to be delivered) and of its performance under the
    Agreement has been made under such officers' supervision and (ii) to the
    best of such officers' knowledge, based on such review, the Servicer has
    fulfilled all its obligations under this Agreement throughout such year and
    that no default under this Agreement has occurred and is continuing, or, if
    there has been a default in the fulfillment of any such obligation,
    specifying each such default known to such officer and the nature and
    status thereof. A copy of such certificate and the report referred to in
    Section 3.11 may be obtained by any Certificateholder by a request in
    writing to the Trustee addressed to the Corporate Trust Office.

         (b)     The Servicer shall deliver to the Trustee, the Insurer and
    each Rating Agency promptly after having obtained knowledge thereof, but in
    no event later than five Business Days thereafter, an Officer's Certificate
    specifying any event which with the giving of notice or lapse of time, or
    both, would become an Event of Default under Section 8.1.

         SECTION 3.11. Annual Independent Certified Public Accountant's Report.
On or before March 15, 1998 and on or before March 15 of each fiscal year
thereafter, the Servicer at its expense shall cause a firm of
nationally-recognized independent certified public accountants (who may also
render other services to the Servicer) to furnish a report to the Trustee and
the Insurer to the effect that (i) they have audited the balance sheet of the
Servicer as of the last day of said fiscal year and the related statements of
operations, retained earnings and cash flows for such fiscal year and have
issued an opinion thereon, specifying the date thereof, (ii) they have also
audited the reports delivered by the Servicer pursuant to Section 3.9(b) and
certain other documents and the records relating to the servicing of the
Contracts and the distributions on the Certificates under this Agreement, (iii)
their audit as described under clauses (i) and (ii) above was made in
accordance with generally accepted auditing standards and accordingly included





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<PAGE>   52
such tests of the accounting records and such other auditing procedures as they
considered necessary in the circumstances, and (iv) their audits described
under clauses (i) and (ii) above disclosed no exceptions which, in their
opinion, were material, relating to the servicing of such Contracts in
accordance with this Agreement and the making of distributions on the
Certificates in accordance with this Agreement, or, if any such exceptions were
disclosed thereby, setting forth those exceptions which, in their opinion, were
material.

         SECTION 3.12. Access to Certain Documentation and Information
Regarding Contracts. If the Servicer is acting as Custodian, the Servicer shall
provide to the Certificateholders, the Trustee and the Insurer reasonable
access to the Contract Files. Access shall be afforded without charge, but only
upon reasonable request and during normal business hours at designated offices
of the Servicer. Nothing in this Section shall affect the obligation of the
Servicer to observe any applicable law prohibiting disclosure of information
regarding the Obligors, and the failure of the Servicer to provide access to
information as a result of such obligation shall not constitute a breach of
this Section 3.12.

         SECTION 3.13. Fidelity Bond. The Servicer shall maintain a fidelity
bond in such form and amount as is customary for banks acting as custodian of
funds and documents in respect of mortgage loans or consumer contracts on
behalf of institutional investors.

         SECTION 3.14. Indemnification; Third Party Claims. The Servicer agrees
to indemnify and hold the Trust, the Trustee and its officers, directors,
agents and employees, and the Certificateholders harmless against any and all
claims, losses, penalties, fines, forfeitures, reasonable legal fees and
related costs, judgments, and any reasonable other costs, fees and expenses
that the Trustee or the Certificateholders may sustain because of the failure
of the Servicer to perform its duties and service the Contracts in compliance
with the terms of this Agreement. The Servicer shall immediately notify the
Trustee if a claim is made by a third party with respect to the Contracts,
shall assume, with the consent of the Trustee, the defense of any such claim
and shall pay all expenses in connection therewith, including counsel fees, and
shall promptly pay, discharge and satisfy any judgment or decree which may be
entered against it or the Trustee or the Certificateholders.

         SECTION 3.15. Reports to Certificateholders and the Rating Agencies.

         (a)     The Trustee at its own expense shall provide to each
    Certificateholder a copy of each Distribution Date Statement described in
    Section 3.9 concurrently with the delivery of the statement described in
    Section 4.5 below.

         (b)     The Trustee shall provide to any Certificateholder who so
    requests in writing (addressed to the Corporate Trust Office) a copy of the
    annual audit statement described in Section 3.10, or the annual audit
    report described in Section 3.11. The Trustee may require the
    Certificateholder to pay a reasonable sum to cover the cost of the
    Trustee's complying with such request.





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<PAGE>   53
         (c)     The Trustee shall forward to the Rating Agencies and the
    Insurer the statement to Certificateholders described in Section 4.5 and
    any other reports it may receive pursuant to this Agreement to (i) Standard
    & Poor's Ratings Services, Asset-Backed Surveillance Group, 26 Broadway,
    Fifteenth Floor, New York, New York 10004, (ii) Moody's Investors Service,
    Inc., ABS Monitoring Dept., 99 Church Street, 4th Floor, New York, New York
    10007, and (iii) the address of the Insurer at the address set forth in the
    Insurance Agreement.

                                   ARTICLE IV

                Distributions; Statements to Certificateholders

         SECTION 4.1.        Accounts.

         (a)     Prior to the Closing Date, the Servicer shall open, at a
    depository institution (which may be the Trustee), an account denominated
    "Collection Account -- GT 1997-4, Bankers Trust Company, Trustee" (the
    "Collection Account") and an account denominated "Payahead Account -- GT
    1997-4, Bankers Trust Company, as agent" (the "Payahead Account") for the
    benefit of the Trustee on behalf of the Obligors and the
    Certificateholders, as their interests may appear, and an account
    denominated "Prefunding Account -- GT 1997-4, Bankers Trust Company,
    Trustee" for the benefit of the Certificateholders (the "Prefunding
    Account," and, collectively, with the Collection Account and the Payahead
    Account, the "Accounts"). The Accounts shall be Eligible Accounts. The
    Servicer shall give the Trustee and the Insurer at least five Business
    Days' written notice of any change in the location of any Account and any
    related account identification information.  All moneys deposited in or
    credited to, from time to time, the Collection Account and Prefunding
    Account shall be part of the Trust and all moneys deposited in or credited
    to, from time to time, the Collection Account and Prefunding Account shall
    be invested by the Trustee in Eligible Investments pursuant to Section
    4.1(c) and 4.1(d), respectively.

         (b)     If as of the last day of a Collection Period a payment in an
    amount less than the scheduled payment of Monthly P&I has been made for a
    Rule of 78's Contract with respect to which amounts have been deposited in
    or credited to the Payahead Account in a preceding Collection Period in
    accordance with Sections 3.1 and 4.2(a), the Servicer shall withdraw from
    the Payahead Account and deposit into the Collection Account by the fifth
    Business Day preceding the Distribution Date immediately succeeding such
    Collection Period the amount of such Monthly P&I, to the extent available
    from amounts deposited in or credited to the Payahead Account with respect
    to such Contract.  Amounts on deposit in the Payahead Account shall be
    invested by Bankers Trust Company upon the written direction of the
    Servicer in Eligible Investments which mature not later than the fifth
    Business Day prior to the Distribution Date to which such amounts relate,
    and any earnings on such Eligible Investments shall be payable to the
    Servicer. The Payahead Account and all amounts on deposit therein or
    credited thereto shall not be considered part of the Trust Estate.

         (c)     All funds in the Collection Account shall be invested by the
    Trustee in Eligible Investments. The Insurer shall direct the Trustee in
    writing to invest funds in the Collection





                                       48
<PAGE>   54
    Account in Eligible Investments; provided that in the absence of such
    directions from the Insurer, the Servicer may so direct the Trustee.  All
    such investments shall be in the name of the Trustee as trustee of the
    Trust. All income or other gain from investment of monies deposited in or
    credited to the Collection Account shall be paid by the Trustee to the
    Servicer monthly, unless earlier requested by the Servicer. The maximum
    permissible maturities of any such investments pursuant to this Section
    4.1(c) on any date shall not be later than the Servicer Report Date
    preceding the Distribution Date next succeeding the date of such
    investment; provided, however, that such funds may be invested by the
    Trustee in Eligible Investments of the entity that is serving as Trustee
    (or an entity which meets the criteria in clauses (b) or (c) of the
    definition of Eligible Account) that mature on the Business Day prior to
    such Distribution Date. No such investment may be sold prior to its
    maturity.

         (d)     The Prefunded Amount shall be invested by the Trustee in
    Eligible Investments at the written direction of the Insurer, provided,
    that if on any date the Insurer has not provided instructions with respect
    to such investments by 10:00 a.m. New York City time, the Trustee shall
    invest such funds in the last Eligible Investment in which such funds were
    invested. All such investments shall be in the name of the Trustee as
    trustee of the Trust. All income or other gain from investment of the
    Prefunded Amount shall be deposited in or credited to the Collection
    Account no later than the Servicer Report Date preceding any Distribution
    Date during (or immediately following) the Funding Period. The maximum
    permissible maturities of any such investments shall be not later than the
    next Business Day.

         SECTION 4.2. Collections; Transfer to Payahead Account; Realization
Upon Surety Bond; Net Deposit.

         (a)     Subject to Section 4.4 below, the Servicer shall remit or
    credit all payments on a daily basis, within two Business Days of receipt,
    by or on behalf of the Obligors on the Contracts and all Net Liquidation
    Proceeds and Net Insurance Proceeds to the Collection Account. The Servicer
    shall deposit the Capitalized Interest Amount with respect to each
    Collection Period to the Collection Account no later than the immediately
    following Servicer Report Date provided, that if the Servicer fails to make
    such deposit, the Capitalized Interest Agent, pursuant to Section
    4.6(a)(ii), shall withdraw the Capitalized Interest Amount from the
    Capitalized Interest Account on the Servicer Report Date and deposit such
    amount into the Collection Account. Prior to the Servicer Report Date,
    amounts with respect to Rule of 78's Contracts which had been deposited in
    or credited to the Collection Account pursuant to the next preceding
    sentence during the preceding Collection Period shall be deposited in or
    credited to the Payahead Account (in accordance with the Distribution Date
    Statement) to the extent that such amounts are installments of Monthly P&I
    which are due in a Collection Period relating to a Distribution Date
    subsequent to the Distribution Date immediately succeeding such Collection
    Period.

         (b)     Based upon the report referenced in Section 3.9(b) delivered
    by the Servicer to the Trustee on the Servicer Report Date, the Servicer
    shall determine the Collection Account Amount Available, compare such
    amount to the amounts required to be distributed pursuant





                                       49
<PAGE>   55
    to Section 4.3, and determine the Policy Claim Amount, if any, which exists
    with respect to the related Distribution Date.

         (c)     The Trustee shall, no later than 12:00 p.m. New York time on
    the third Business Day prior to each Distribution Date, make a claim under
    the Surety Bond for the Policy Claim Amount, if any, for such Distribution
    Date by delivering to the Insurer and the Bank, with a copy to the
    Servicer, by hand delivery, telex or facsimile transmission, a Deficiency
    Notice specifying the Policy Claim Amount. In making any such claim, the
    Trustee shall comply with all the terms and conditions of the Surety Bond.
    The notice of such claim shall direct the Insurer and Bank to remit such
    Policy Claim Amount (no later than 11:00 a.m. on the Business Day
    immediately preceding such Distribution Date) to the Trustee for deposit in
    the Collection Account.

         (d)     So long as Onyx is the Servicer, the Servicer may make
    deposits in or credits to the Collection Account net of amounts to be paid
    to the Servicer under this Agreement. Notwithstanding the foregoing, the
    Servicer shall maintain the records and accounts for such deposits and
    credits on a gross basis.

         SECTION 4.3.       Distributions.

         (a)     On the Business Day immediately preceding each Distribution
    Date, the Trustee shall transfer, or cause to be transferred, to the Paying
    Agent for deposit in the Distribution Account from the Amount Available in
    the Collection Account, the amounts set forth in clauses (ii) and (iii)
    below, to the extent that such amounts are available after giving effect to
    the amount to be distributed on the Distribution Date set forth in clause
    (i).

         On each Distribution Date, the following amounts shall be distributed
    from the Amount Available in the following order of priority in accordance
    with the Distribution Date Statement:

                 (i)      by the Trustee, from the Collection Account to the
         Servicer, the Servicing Fee to the extent of the Amount Available
         allocable to interest from any source under the Recomputed Actuarial
         Method in the case of Rule of 78's Contracts and under the Simple
         Interest Method in the case of Simple Interest Contracts;

                 (ii)     by the Paying Agent from the Distribution Account, to
         the Certificateholders, the Interest Distribution to the extent of the
         Amount Available allocable to interest from any source on each
         Contract under the Recomputed Actuarial Method in the case of Rule of
         78's Contracts and under the Simple Interest Method in the case of
         Simple Interest Contracts;

                 (iii)    by the Paying Agent from the Distribution Account, to
         the Certificateholders, the Principal Distribution to the extent of
         the Amount Available allocable to principal from any source on each
         Contract under the Recomputed Actuarial





                                       50
<PAGE>   56
         Method in the case of Rule of 78's Contracts and under the Simple
         Interest Method in the case of Simple Interest Contracts; and

                 (iv)     by the Trustee from the Collection Account, to the
         Insurer, the Premium.

         Any amounts remaining in the Collection Account after giving effect to
the distributions set forth in items (i) through (iv) above shall be deposited
in the Spread Account and shall be held or distributed in accordance with the
provisions of the Insurance Agreement.

         All distributions to Certificateholders shall be made pro rata by
check mailed to each Certificateholder of record on the Record Date next
preceding the Distribution Date for such distribution; provided, that if so
directed by the Servicer in the case of Certificates registered in the name of
a Clearing Agency, such distribution shall be made by wire transfer in
immediately available funds.

         (b)     On the Business Day preceding the Mandatory Partial Prepayment
    Date, the Trustee shall remit the Prepayment Amount to the Collection
    Account pursuant to Section 4.7.

         SECTION 4.4. Remittance Of Repurchase Amount. The Servicer or the
Seller, as the case may be, shall remit or credit to the Collection Account the
aggregate Repurchase Amount with respect to Repurchased Contracts on the
Business Day preceding the Servicer Report Date next succeeding the last day of
the related cure period specified in Sections 2.3 or 3.7, as the case may be.

         SECTION 4.5. Statements to Certificateholders. On each Distribution
Date, the Trustee shall include with each distribution to each
Certificateholder a statement, based on information set forth in the
Distribution Date Statement furnished pursuant to Section 3.9, setting forth
for such Distribution Date the following information:

         (a)     the amount of such Certificateholder's distribution allocable
    to principal, separately identifying the aggregate amount included therein
    of any (i) Mandatory Partial Prepayments of principal on Rule of 78's
    Contracts, and (ii) Mandatory Partial Prepayments and partial prepayments
    of principal on Simple Interest Contracts;

         (b)     the amount of such Certificateholder's distribution allocable
    to interest;

         (c)     the Certificateholder's pro rata portion of expenses allocable
    to the Servicing Fee paid to the Servicer and the Premium paid to the
    Insurer;

         (d)     during the Funding Period, the Aggregate Scheduled Balance of
    Subsequent Contracts transferred to the Trust during the preceding
    Collection Period;

         (e)     during the Funding Period, the remaining amount on deposit, if
    any, in the Prefunding Account, after giving effect to (d) above;





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<PAGE>   57
         (f)     for the first Distribution Date that is on or immediately
    following the end of the Funding Period, if any, the amount of the
    Prefunded Amount that has not been used to purchase Subsequent Contracts
    and is being distributed as a payment of principal to Certificateholders;
    and

         (g)     the Pool Balance and the Pool Factor as of the Distribution
    Date (after giving effect to the distribution made on such Distribution
    Date).

         In the case of the information furnished pursuant to clauses (a), (b)
and (c) above, the amounts shall be expressed as a dollar amount per
Certificate evidencing a $1,000 denomination.

         Within a reasonable period of time after the end of each calendar year
but not later than the latest date permitted by law, the Servicer shall prepare
and furnish to the Trustee and the Paying Agent and the Paying Agent shall
furnish, to each Person who on any Record Date during such calendar year shall
have been a Certificateholder, a statement containing the sum of the amounts
determined in clauses (a) through (c) and such other information as is
reasonably necessary for the preparation of such Person's federal income tax
return in respect of the Certificates, for such calendar year or, in the event
such Person shall have been a Certificateholder during a portion of such
calendar year, for the applicable portion of such year, for the purposes of
such Certificateholder's preparation of federal income tax returns.

         SECTION 4.6. Capitalized Interest Account.

         (a)     On or before the Closing Date, pursuant to the terms of the
    Capitalized Interest Agreement, Onyx shall establish and maintain a
    separate trust account in the name of the Capitalized Interest Agent, as
    agent for the Certificateholders and the Insurer (the "Capitalized Interest
    Account") to secure the payment of any Capitalized Interest Amounts
    required to be paid on any Servicer Report Date pursuant to the Capitalized
    Interest Agreement which Onyx has not paid as of the Business Day prior to
    such Servicer Report Date and required to be paid on any Subsequent Closing
    Date which Onyx has not paid as of such Subsequent Closing Date. The
    Capitalized Interest Account shall be established at a depository
    institution (which may be the Trustee) and shall be an Eligible Account. On
    the date of issuance of the Certificates, pursuant to the Capitalized
    Interest Agreement, Onyx shall deposit $o into the Capitalized Interest
    Account.  The Capitalized Interest Account shall not be part of the Trust.
    Each of the Certificateholders on behalf of itself and its successors and
    assigns (including, but not limited to any future Certificateholder), and
    the Insurer hereby appoints the Capitalized Interest Agent, acting in its
    capacity as agent for the purposes of this Section 4.6 and not as Trustee
    with respect to the Capitalized Interest Account, as its agent and the
    Capitalized Interest Agent hereby accepts such appointment subject to the
    terms and conditions hereof. In order to secure the obligations of Onyx and
    the Seller under the Capitalized Interest Agreement, Onyx and the Seller
    hereby pledge and grant a security interest in and to the Capitalized
    Interest Account, all funds and investments on deposit therein or credited
    thereto and all proceeds thereof to the Capitalized Interest Agent and its
    successors and assigns, subject, however, to the limitations set forth
    below:





                                       52
<PAGE>   58
                 (i)      All or a portion of the Capitalized Interest Account
         may be invested and reinvested in Eligible Investments in accordance
         with written instructions from Onyx. All such investments shall be
         made in the name of the Capitalized Interest Agent and all income and
         gain realized thereon shall be solely for the benefit of Onyx and
         shall be payable by the Capitalized Interest Agent to Onyx on each
         Servicer Report Date from time to time upon Onyx's written request to
         the Capitalized Interest Agent;

                 (ii)     If with respect to any Collection Period the Seller
         or Onyx shall have failed to make or cause to be made in full the
         remittance of the Capitalized Interest Amount on the date required by
         the Capitalized Interest Agreement, the Capitalized Interest Agent on
         the Servicer Report Date, shall, upon the written direction of the
         Servicer or the Insurer, at the opening of business on the Servicer
         Report Date, withdraw from the Capitalized Interest Account and
         deposit into the Collection Account, the amount of the shortfall
         between the amount of funds that are required to be remitted by the
         Seller or Onyx with respect to the Capitalized Interest Agreement as
         set forth in the report delivered by the Servicer pursuant to Section
         3.9(b) and the amount of funds actually so remitted;

                 (iii)    On each Subsequent Closing Date, the aggregate
         Additional Capitalized Interest Amounts (if any) with respect to the
         Subsequent Contracts conveyed to the Trust during the period from (and
         including) the preceding Subsequent Closing Date (or the initial
         Closing Date, in the case of the first Subsequent Closing Date) to
         (but excluding) such Subsequent Closing Date shall be deposited in the
         Capitalized Interest Account;

                 (iv)     On each Subsequent Closing Date, upon the
         satisfaction of the conditions set forth in Section 2.1(h), the
         Capitalized Interest Amount with respect to such Subsequent Closing
         Date shall be released from the Capitalized Interest Account and paid
         to Onyx; and

                 (v)      Upon termination of this Agreement in accordance with
         Sections 10.1 and 10.2, any amounts on deposit in the Capitalized
         Interest Account shall, upon written request of Onyx, be paid to Onyx.

         SECTION 4.7.       Prefunding Account.

         (a)     Pursuant to Section 4.1, the Servicer shall establish the
    Prefunding Account in the name of the Trustee for the benefit of the
    Certificateholders.

         (b)     On the Closing Date, the Seller shall deposit into the
    Prefunding Account an amount equal to the Prefunded Amount from the
    proceeds of the sale of the Certificates. Upon receipt of the Transfer
    Certificate and the Contract Documents referenced therein by 10:00 a.m.
    California time on such Subsequent Transfer Date, the Trustee shall
    withdraw from the Prefunding Account an amount equal to the aggregate
    original principal balance of the Subsequent Contracts (determined as of
    the related Subsequent Transfer Date) that have





                                       53
<PAGE>   59
    been delivered to the Trustee and wire such amount by federal funds to the
    Seller's account listed in the Transfer Certificate relating to such
    Subsequent Transfer Date by 1:00 p.m. California time on the same day (or
    if such Transfer Certificate and Contract Documents referenced therein are
    not received by the Trustee by the 10:00 a.m. deadline, then by 1:00 p.m.
    California time on the next Business Day).

         (c)     If any amount remains on deposit in the Prefunding Account on
    April 15, 1998, such amount shall be invested at the written instruction of
    the Servicer in a single Eligible Investment which matures on the Business
    Day preceding the Final Distribution Date; provided, that in the event no
    such Eligible Investment is available, such amount shall not be invested
    but shall be held in the Prefunding Account uninvested.

         (d)     On the Business Day preceding the Final Distribution Date, the
    Servicer shall instruct the Trustee in writing to withdraw the Prepayment
    Amount from the Prefunding Account and deposit such amount in the
    Collection Account to be included in the Collection Account Amount
    Available with respect to the Mandatory Partial Prepayment Date.

                                   ARTICLE V

                                The Certificates

         SECTION 5.1. The Certificates. Unless otherwise specified in the
Agreement, the Certificates shall be substantially in the form set forth in
Exhibit B and shall be issued in denominations of $1,000 and integral multiples
thereof; provided, however, that one Certificate may be issued in a
denomination that includes any residual portion of the Original Pool/Pre-
Funding Amount. The Certificates shall be executed on behalf of the Trust by
manual or facsimile signature of a Responsible Officer of the Trustee.
Certificates bearing the manual or facsimile signatures of individuals who
were, at the time when such signatures shall have been affixed, authorized to
sign on behalf of the Trust, shall be valid and binding obligations of the
Trust, notwithstanding that such individuals or any of them shall have ceased
to be so authorized prior to the authentication and delivery of such
Certificates or did not hold such offices at the date of the issuance of such
Certificates. No Certificate shall entitle its holder to any benefit under the
Agreement, or shall be valid for any purpose, unless there shall appear on such
Certificate a certificate of authentication substantially in the form set forth
in Exhibit B hereto executed by the Trustee by manual signature; such
authentication shall constitute conclusive evidence that such Certificate shall
have been duly authenticated and delivered hereunder. All Certificates shall be
dated the date of their authentication. Upon issuance pursuant to the terms of
the Agreement, the Certificates will be entitled to the benefits of the
Agreement.

         SECTION 5.2. Execution, Authentication and Delivery of Certificates.
In exchange for the Contracts and the other assets of the Trust as of the
Closing Date, simultaneously with the sale, assignment and transfer to the
Trustee of the Contracts, the delivery to the Trustee of the Contract
Documents, the constructive delivery to the Trust of the Contract Files other
than the Contract Documents and the delivery to the Trustee of the other
components of the Trust (other than the Subsequent Contracts and related
property), the Trustee shall deliver to, or upon the





                                       54
<PAGE>   60
written order of, the Seller, Certificates duly executed by the Trustee, on
behalf of the Trust, and authenticated by the Trustee in authorized
denominations equaling in the aggregate the Original Pool/Prefunding Amount,
and evidencing the entire ownership of the Trust.

         SECTION 5.3. Registration of Transfer and Exchange of Certificates.
The Trustee shall cause to be kept at the office or agency to be maintained by
a transfer agent and certificate registrar (the "Transfer Agent" and
"Certificate Registrar") and maintain, pursuant to Section 5.7, a Certificate
Register in which, subject to such reasonable regulations as it may prescribe,
the Trustee shall provide for the registration of Certificates and of transfers
and exchanges of Certificates as herein provided. The Trustee shall be the
initial Transfer Agent and Certificate Registrar.

         Subject to the other provisions of this Section , upon surrender for
registration or transfer of any Certificate at the Corporate Trust Office, the
Trustee shall execute on behalf of the Trust, authenticate and deliver, in the
name of the designated transferee or transferees, one or more new Certificates
in authorized denominations of a like aggregate amount. At the option of a
Certificateholder, Certificates may be exchanged for other Certificates of
authorized denominations of a like aggregate amount at the Corporate Trust
Office.

         Every Certificate presented or surrendered for registration of
transfer or exchange shall be accompanied by a written instrument of transfer
in form satisfactory to the Trustee and the Certificate Registrar duly executed
by the Holder. Each Certificate surrendered for registration of transfer and
exchange shall be cancelled and subsequently destroyed by the Trustee.

         No service charge shall be made for any registration of transfer or
exchange of Certificates, but the Trustee may require payment of a sum
sufficient to cover any tax of governmental charge that may be imposed in
connection with any transfer or exchange of Certificates.

         SECTION 5.4. Mutilated, Destroyed, Lost or Stolen Certificates. If (i)
any mutilated Certificate shall be surrendered to the Certificate Registrar, or
if the Certificate Registrar shall receive evidence to its satisfaction of the
destruction, loss, or theft of any Certificate and (ii) there shall be
delivered to the Certificate Registrar or the Trustee such security or
indemnity as may be required by them to save each of them harmless, then in the
absence of notice that such Certificate shall have been acquired by a bona fide
purchaser, the Trustee on behalf of the Trust shall execute and the Trustee
shall authenticate and deliver, in exchange for or in lieu of any such
mutilated, destroyed, lost or stolen Certificate, a new Certificate of like
tenor and denomination. In connection with the issuance of any new Certificate
under this Section 5.4, the Trustee and the Certificate Registrar may require
the payment of a sum sufficient to cover any tax or other governmental charge
that may be imposed in connection therewith. Any duplicate Certificate issued
pursuant to this Section 5.4 shall constitute conclusive evidence of ownership
in the Trust, as if originally issued, whether or not the lost, stolen, or
destroyed Certificate shall be found at any time.





                                       55
<PAGE>   61
         SECTION 5.5. Persons Deemed Owners. Prior to due presentation of a
Certificate for registration or transfer, the Trustee or the Certificate
Registrar may treat the Person in whose name any Certificate shall be
registered as the owner of such Certificate for the purpose of receiving
distributions pursuant to Section 4.3 and for all other purposes whatsoever,
and neither the Trustee nor the Certificate Registrar shall be bound by any
notice to the contrary.

         SECTION 5.6. Access to List of Certificateholders' Names and
Addresses. The Trustee shall furnish or cause to be furnished to the Servicer,
within 15 days after receipt by the Trustee of a request therefor from the
Servicer in writing, a list of the names and addresses of the
Certificateholders as of the most recent Record Date. If three or more
Certificateholders, or one or more Holders of Certificates evidencing in the
aggregate not less than 25% of the Pool/Prefunding Balance (hereinafter
referred to as "applicants"), apply in writing to the Trustee, and such
application states that the applicants desire to communicate with other
Certificateholders with respect to their rights under the Agreement or under
the Certificates and such application shall be accompanied by a copy of the
communication that such applicants propose to transmit, then the Trustee shall,
within five Business Days after the receipt of such application, afford such
applicants access during normal business hours to the current list of
Certificateholders. Each Certificateholder, by receiving and holding a
Certificate, shall be deemed to have agreed to hold neither the Servicer nor
the Trustee accountable by reason of the disclosure of its name and address,
regardless of the source from which such information was derived.

         SECTION 5.7. Maintenance of Office or Agency. The Trustee shall
maintain in the Borough of Manhattan, the City of New York, an office or
offices or agency or agencies where Certificates may be surrendered for
registration of transfer or exchange and where notices and demands to or upon
the Trustee in respect of the Certificates and the Agreement may be served. The
Trustee initially designated the Corporate Trust Office as specified in the
Agreement as its office for such purposes. The Trustee shall give prompt
written notice to the Servicer and to Certificateholders of any change in the
location of the Certificate Register or any such office or agency.

         SECTION 5.8. Book-Entry Certificates. The Certificates (other than a
Certificate representing any residual portion of the Pool/Prefunding Balance),
upon original issuance, shall be issued in the form of typewritten Certificates
representing the Book-Entry Certificates, to be delivered to The Depository
Trust Company, the initial Clearing Agency, by the Seller or on its behalf. The
Certificates shall initially be registered on the Certificate Register in the
name of Cede & Co., the nominee of the initial Clearing Agency, and no
Certificate Owner will receive a definitive certificate representing such
Certificate Owner's interest in the Certificates, except as provided in Section
5.10. Unless and until definitive, fully registered Certificates ("Definitive
Certificates") have been issued to Certificateholders pursuant to Section 5.10:

                 (i)      the provisions of this Section 5.8 shall be in full
         force and effect;

                 (ii)     the Seller, the Servicer, the Paying Agent, the
         Transfer Agent and Certificate Registrar and the Trustee may deal
         exclusively with the Clearing Agency for





                                       56
<PAGE>   62
         all purposes (including the making of distributions in respect of the
         Certificates and the taking of actions by the Certificateholders) as
         the authorized representative of the Clearing Agency Participants and
         the Certificate Owners;

                 (iii)    to the extent that the provisions of this Section 5.8
         conflict with any other provisions of the Agreement, the provisions of
         this Section 5.8 shall control;

                 (iv)     the rights of Certificate Owners shall be exercised
         only through the Clearing Agency (or to the extent Certificate Owners
         are not Clearing Agency Participants through the Clearing Agency
         Participants through which such Certificate Owners own Book- Entry
         Certificates) and shall be limited to those established by law and
         agreements between such Certificate Owners and the Clearing Agency
         and/or the Clearing Agency Participants and all references in the
         Agreement to actions by Certificateholders shall refer to actions
         taken by the Clearing Agency upon instructions from the Clearing
         Agency Participants, and all references in the Agreement to
         distributions, notices, reports and statements to Certificateholders
         shall refer to distributions, notices, reports and statements to the
         Clearing Agency or its nominee, as registered holder of the
         Certificates, as the case may be, for distribution to Certificate
         Owners in accordance with the procedures of the Clearing Agency; and

                 (v)      pursuant to the Depository Agreement, the initial
         Clearing Agency will make book-entry transfers among the Clearing
         Agency Participants and receive and transmit distributions of
         principal and interest on the Certificates to the Clearing Agency
         Participants, for distribution by such Clearing Agency Participants to
         the Certificate Owners or their nominees.

         The Clearing Agency Participants shall have no rights under this
Agreement under or with respect to any of the Certificates held on their behalf
by the Clearing Agency, and the Clearing Agency may be treated by the Trustee,
and its agents, employees, officers and directors, as the absolute owner of the
Certificates for all purposes whatsoever.

         SECTION 5.9. Notices to Clearing Agency. Whenever notice or other
communication to the Certificateholders is required under the Agreement, unless
and until Definitive Certificates shall have been issued to Certificate Owners
pursuant to Section 5.10, the Trustee and the Paying Agent shall give all such
notices and communications specified herein to be given by it to
Certificateholders to the Clearing Agency.

         SECTION 5.10. Definitive Certificates. If (i)(A) the Seller advises
the Trustee in writing that the Clearing Agency is no longer willing or able
properly to discharge its responsibilities under the Depository Agreement, and
(B) the Trustee or the Seller is unable to locate a qualified successor or (ii)
after the occurrence of an Event of Default, Certificate Owners representing
beneficial interests aggregating more than 50% of the Pool/Prefunding Balance
advise the Clearing Agency and the Trustee (and the Clearing Agency shall
notify the Trustee in writing thereof) through the Clearing Agency Participants
in writing that the continuation of a book-entry system through the Clearing
Agency is no longer in the best interests of the Certificate





                                       57
<PAGE>   63
Owners, the Trustee shall notify the Clearing Agency of the occurrence of any
event described in clauses (i) and (ii) above and of the availability of
Definitive Certificates to Certificate Owners requesting the same. Upon
surrender to the Transfer Agent and Certificate Registrar by the Clearing
Agency of Certificates registered in the name of such Clearing Agency or its
nominee, accompanied by re-registration instructions from the Clearing Agency
for registration of the Definitive Certificates, the Trustee shall execute on
behalf of the Trust, authenticate and (if the Transfer Agent and Certificate
Registrar is different than the Trustee, then the Transfer Agent and
Certificate Registrar shall) deliver Definitive Certificates. The Servicer
shall arrange for, and will bear all costs of, the printing and issuance of
such Definitive Certificates. None of the Seller, the Servicer, the Transfer
Agent and Certificate Registrar or the Trustee shall be liable for any delay in
delivery of such instructions and may conclusively rely on, and shall be
protected in relying on such instruction. Upon the issuance of Definitive
Certificates, all references herein to obligations imposed upon or to be
performed by the Clearing Agency shall be deemed to be imposed upon and
performed by the Transfer Agent and Certificate Registrar, to the extent
applicable with respect to such Definitive Certificates and the Trustee, the
Paying Agent and the Transfer Agent and Certificate Registrar shall recognize
the Holders of the Definitive Certificates as Certificateholders hereunder.

         SECTION 5.11.      Appointment of Paying Agent.

         (a)     The Paying Agent shall have the revocable power to withdraw
    funds from the Collection Account and make distributions to the
    Certificateholders. The Trustee may revoke such power and remove the Paying
    Agent, if the Trustee determines in its sole discretion that the Paying
    Agent shall have failed to perform its obligations under the Agreement in
    any material respect or for other good cause. The Paying Agent shall
    initially be Bankers Trust Company. Bankers Trust Company shall be
    permitted to resign as Paying Agent upon 30 days' written notice to the
    Servicer and the Trustee. In the event that Bankers Trust Company shall no
    longer be the Paying Agent, the Trustee shall appoint a successor to act as
    Paying Agent, which shall be a bank or trust company.

         (b)     The Trustee shall cause the Paying Agent (if other than
    itself) to execute and deliver to the Trustee an instrument in which such
    Paying Agent shall agree with the Trustee that such Paying Agent will hold
    all sums, if any, held by it for payment to the Certificateholders, and the
    Trustee in trust for the benefit of the Certificateholders or other party
    entitled thereto until such sums shall be paid to such Certificateholders
    or other party entitled thereto and shall agree, and if the Trustee is the
    Paying Agent it hereby agrees, that it shall comply with all requirements
    of the Code regarding the withholding by the Trustee of payments in respect
    of federal income taxes due from Certificate Owners.

         (c)     Bankers Trust Company in its capacity as initial Paying Agent
    hereunder agrees that it (i) will hold all sums held by it hereunder for
    payment to the Certificateholders, in trust for the benefit of the
    Certificateholders or other party entitled thereto until such sums shall be
    paid to such Certificateholders or other party entitled thereto and (ii)
    shall comply with all requirements of the Code regarding the withholding by
    the Trustee of payments in respect of federal income taxes due from
    Certificate Owners.





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<PAGE>   64
         SECTION 5.12.      Authenticating Agent.

         (a)     The Trustee may appoint one or more authenticating agents
    (each an "Authenticating Agent") with respect to the Certificates which
    shall be authorized to act on behalf of the Trustee in authenticating the
    Certificates in connection with the issuance, delivery, registration of
    transfer, exchange or repayment of the Certificates. Whenever reference is
    made in this Agreement to the authentication of Certificates by the Trustee
    or the Trustee's certificate of authentication, such reference shall be
    deemed to include authentication on behalf of the Trustee by an
    authenticating agent and a certificate of authentication executed on behalf
    of the Trustee by an authenticating agent. Any authenticating agent
    appointed by the Trustee shall require the consent of the Seller, which
    consent may not be unreasonably withheld.

         (b)     Any institution succeeding to the corporate agency business of
    an authenticating agent shall continue to be an authenticating agent
    without the execution or filing of any paper or any further act on the part
    of the Trustee or such authenticating agent.

         (c)     An authenticating agent may at any time resign by giving
    written notice of resignation to the Trustee and the Seller. The Trustee
    may at any time terminate the agency of an authenticating agent by giving
    notice of termination to such authenticating agent and to the Seller. Upon
    receiving such a notice of resignation or upon such a termination, or in
    case at any time an authenticating agent shall cease to be acceptable to
    the Trustee or the Seller, the Trustee promptly may appoint a successor
    authenticating agent with the consent of the Seller. Any successor
    authenticating agent upon acceptance of its appointment hereunder shall
    become vested with all the rights, powers and duties of its predecessor
    hereunder, with like effect as if originally named as an authenticating
    agent. Any successor authenticating agent appointed by the Trustee shall
    require the consent of the Seller, which consent may not be unreasonably
    withheld.

         (d)     The Servicer shall pay the Authenticating Agent from time to
    time reasonable compensation for its services under this Section 5.12.

         (e)     Pursuant to an appointment made under this Section 5.12, the
    Certificates may have endorsed thereon, in lieu of the Trustee's
    certificate of authentication, an alternate certificate of authentication
    in substantially the following form:

         This is one of the certificates referred to in the within mentioned
Agreement.

                                   _____________________________,
                                   as Trustee

                                   By:__________________________
                                         Authorized Signatory





                                       59
<PAGE>   65
                                       or

                                  as Authenticating Agent
                                  for the Trustee,

                                  By:__________________________
                                        Authorized Signatory

         SECTION 5.13. Actions of Certificateholders. Any request, demand,
authorization, direction, notice, consent, waiver or other action provided by
the Agreement to be given or taken by Certificateholders may be embodied in and
evidenced by one or more instruments of substantially similar tenor signed by
such Certificateholders in person or by an agent duly appointed in writing; and
except as herein otherwise expressly provided, such action shall become
effective when such instrument or instruments are delivered to the Trustee and,
when required, to the Seller or the Servicer. Proof of execution of any such
instrument or of a writing appointing any such agent shall be sufficient for
any purpose of the Agreement and conclusive in favor of the Trustee, the Seller
and the Servicer, if made in the manner provided in this Section 5.13.

                                   ARTICLE VI

                                   The Seller

         SECTION 6.1. Liability of Seller; Indemnities. The Seller shall be
liable in accordance herewith only to the extent of the obligations
specifically undertaken by the Seller under the Agreement.

         The Seller shall indemnify, defend, and hold harmless the Trustee and
its officers, directors, agents and employees and the Trust from and against
any taxes that may at any time be asserted against the Trustee or the Trust
with respect to, and as of the date of, the sale of the Contracts to the
Trustee or the issuance and original sale of the Certificates, including any
sales, gross receipts, general corporation, tangible personal property,
privilege, or license taxes (but not, in case of the Trust, including any taxes
asserted with respect to ownership of the Contracts or federal or other income
taxes arising out of the transactions contemplated by the Agreement) and costs
and expenses in defending against the same.

         The Seller shall indemnify, defend, and hold harmless the Trustee and
its officers, directors, agents and employees from and against any loss,
liability or expense incurred by reason of the Seller's willful misfeasance,
bad faith, or negligence in the performance of its duties hereunder, or by
reason of reckless disregard of its obligations and duties hereunder.

         The Seller shall indemnify, defend and hold harmless the Trustee and
its officers, directors, agents and employees and the Trust from and against
all costs, expenses, losses, claims, damages, and liabilities arising out of or
incurred in connection with the acceptance or performance of the trusts and
duties herein contained, except to the extent that such cost,





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<PAGE>   66
expense, loss, claim, damage or liability: (i) shall be due to the willful
misfeasance, bad faith, or gross negligence of the Trustee; or (ii) shall arise
from the Trustee's breach of any of its representations or warranties set forth
in Section 9.14.

         Indemnification under this Section 6.1 shall include, without
limitation, reasonable fees and expenses of counsel and expenses of litigation.
If the Seller shall have made any indemnity payments to the Trustee pursuant to
this Section and the Trustee thereafter shall collect any of such amounts from
others, the Trustee shall repay such amounts to the Seller, without interest.

         SECTION 6.2. Merger or Consolidation of, or Assumption of the
Obligations of, Seller. The Seller shall not consolidate with or merge into any
other corporation or convey, transfer or lease substantially all of its assets
as an entirety to any Person unless the corporation formed by such
consolidation or into which the Seller has merged or the Person which acquires
by conveyance, transfer or lease substantially all the assets of the Seller as
an entirety, can lawfully perform the obligations of the Seller hereunder and
executes and delivers to the Insurer and the Trustee an agreement in form and
substance reasonably satisfactory to the Trustee and the Insurer, which
contains an assumption by such successor entity of the due and punctual
performance and observance of each covenant and condition to be performed or
observed by the Seller under this Agreement.

         SECTION 6.3. Limitation on Liability of Seller and Others. The Seller
and any director or officer or employee or agent of the Seller may rely in good
faith on any document of any kind, prima facie properly executed and submitted
by any Person respecting any matters arising hereunder. The Seller shall not be
under any obligation to appear in, prosecute, or defend any legal action that
shall not be incidental to its obligations under this Agreement, and that in
its opinion may involve it in any expense or liability.

         SECTION 6.4. Seller Not to Resign. Subject to the provisions of
Section 6.2, the Seller shall not resign from the obligations and duties hereby
imposed on it as Seller under this Agreement.

         SECTION 6.5. Seller May Own Certificates. The Seller and any Person
controlling, controlled by, or under common control with the Seller may in its
individual or any other capacity become the owner or pledgee of Certificates
with the same rights as it would have if it were not the Seller or an affiliate
thereof, except as otherwise provided in the definition of "Certificateholder"
specified in Section 1.1.  Certificates so owned by or pledged to the Seller or
such controlling or commonly controlled Person shall have an equal and
proportionate benefit under the provisions of the Agreement, without
preference, priority, or distinction as among all of the Certificates.

                                  ARTICLE VII

                                  The Servicer





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<PAGE>   67
         SECTION 7.1. Liability of Servicer; Indemnities. The Servicer shall be
liable in accordance herewith only to the extent of the obligations
specifically undertaken by the Servicer under the Agreement.

         Such obligations shall include the following:

         (a)     the Servicer shall defend, indemnify, and hold harmless the
    Trustee and its officers, directors, agents and employees, the Trust, the
    Insurer and the Certificateholders from and against any and all costs,
    expenses, losses, damages, claims, and liabilities, arising out of or
    resulting from the use or operation by the Servicer or any Affiliate
    thereof of a Financed Vehicle;

         (b)     the Servicer shall indemnify, defend and hold harmless the
    Trustee and its officers, directors, agents and employees, the Insurer and
    the Trust from and against any taxes that may at any time be asserted
    against the Trustee or the Trust with respect to the transactions
    contemplated herein, including, without limitation, any sales, gross
    receipts, general corporation, tangible personal property, privilege, or
    license taxes (but not including any taxes asserted with respect to, and as
    of the date of, the sale of the Contracts to the Trustee or the issuance
    and original sale of the Certificates, or asserted with respect to
    ownership of the Contracts, or federal or other income taxes arising out of
    distributions on the Certificates) and costs and expenses in defending
    against the same;

         (c)     the Servicer shall indemnify, defend and hold harmless the
    Trustee and its officers, directors, agents and employees, the Trust, the
    Insurer and the Certificateholders from and against any and all costs,
    expenses, losses, claims, damages, and liabilities to the extent that such
    cost, expense, loss, claim, damage, or liability arose out of, or was
    imposed upon the Trustee, the Trust, or the Certificateholders through, the
    negligence, willful misfeasance, or bad faith of the Servicer in the
    performance of its duties under the Agreement; and

         (d)     the Servicer shall indemnify, defend, and hold harmless the
    Trustee and the Insurer from and against all costs, expenses, losses,
    claims, damages, and liabilities arising out of or incurred in connection
    with the acceptance or performance of the trusts and duties herein
    contained, except to the extent that such cost, expense, loss, claim,
    damage, or liability: (i) shall be due to the willful misfeasance, bad
    faith, or negligence (except for errors in judgment) of the Trustee or the
    Insurer; (ii) relates to any tax other than the taxes with respect to which
    either the Seller or Servicer shall be required to indemnify the Trustee;
    (iii) shall arise from the Trustee's breach of any of its representations
    or warranties set forth in Section 9.13; or (iv) shall be one as to which
    the Seller is required to indemnify the Trustee.

         Indemnification under this Section shall include reasonable fees and
expenses of counsel and expenses of litigation. If the Servicer shall have made
any indemnity payments pursuant to this Section and the recipient thereafter
collects any of such amounts from others, the recipient shall promptly repay
such amounts to the Servicer, without interest.





                                       62
<PAGE>   68
         SECTION 7.2.       Corporate Existence; Status as Servicer; Merger.

         (a)     The Servicer shall keep in full effect its existence, rights
    and franchises as a corporation incorporated under the laws of the State of
    Delaware, and will obtain and preserve its qualification to do business as
    a foreign corporation in each jurisdiction in which such qualification is
    or shall be necessary to protect the validity and enforceability of the
    Contract Documents and this Agreement.

         (b)     The Servicer shall not consolidate with or merge into any
    other corporation or convey, transfer or lease substantially all of its
    assets as an entirety to any Person or engage in any corporate transaction
    pursuant to which the surviving or successor entity is not Onyx Acceptance
    Corporation, unless (i) such entity is at least rated investment grade by
    the Rating Agencies, (ii) the Insurer shall have consented thereto in
    writing and (iii) such entity executes and delivers to the Trustee and the
    Insurer an agreement in form and substance reasonably satisfactory to the
    Trustee and the Insurer, which contains an assumption by such successor
    entity of the due and punctual performance and observance of each covenant
    and condition to be performed or observed by the Servicer under this
    Agreement.

         SECTION 7.3.       Performance of Obligations.

         (a)     The Servicer shall punctually perform and observe all of its
    obligations and agreements contained in this Agreement.

         (b)     The Servicer shall not take any action, or permit any action
    to be taken by others, which would excuse any person from any of its
    covenants or obligations under any of the Contract Documents or under any
    other instrument included in the Trust Estate, or which would result in the
    amendment, hypothecation, subordination, termination or discharge of, or
    impair the validity or effectiveness of, any of the Contract Documents or
    any such instrument, except as expressly provided herein and therein.

         SECTION 7.4.       The Servicer Not to Resign; Assignment.

         (a)     The Servicer shall not resign from the duties and obligations
    hereby imposed on it except upon determination by its Board of Directors
    that by reason of change in applicable legal requirements the continued
    performance by the Servicer of its duties under this Agreement would cause
    it to be in violation of such legal requirements in a manner which would
    result in a material adverse effect on the Servicer or its financial
    condition, said determination to be evidenced by a resolution of its Board
    of Directors to such effect accompanied by an Opinion of Counsel,
    satisfactory to the Trustee, to such effect (subject to Section 8.2
    hereof). No such resignation shall become effective unless and until (i)
    the Back-up Servicer assumes all of the Servicer's obligations under this
    Agreement or (ii) a new servicer acceptable to the Trustee with the
    consultation of the Insurer is willing to service the Contracts, enters
    into a servicing agreement with the Trustee in form and substance
    substantially similar to this Agreement and satisfactory to the Trustee and
    the Insurer, and the rating agency or agencies that rated the Certificates
    confirm that the selection of such new





                                       63
<PAGE>   69
    servicer will not result in the reduction or withdrawal of the rating of
    the Certificates assigned to them by such rating agency or, if the
    Certificates are rated by more than one rating agency, each such rating
    agency. No such resignation by the Servicer shall affect the obligation of
    the Servicer to repurchase any Contract pursuant to Section 3.7.

         (b)     Except as specifically permitted hereunder, the Servicer may
    not assign this Agreement or any of its rights, powers, duties or
    obligations hereunder, provided that the Servicer may assign this Agreement
    in connection with a consolidation, merger, conveyance, transfer or lease
    made in compliance with Section 7.2(b).

         (c)     Except as provided in Sections 7.4(a) and (b), the duties and
    obligations of the Servicer under this Agreement shall continue until this
    Agreement shall have been terminated as provided in Section 10.1, and shall
    survive the exercise by the Trustee or the Insurer of any right or remedy
    under this Agreement, or the enforcement by the Trustee, any
    Certificateholder or the Insurer of any provision of the Certificates, the
    Insurance Agreement or this Agreement.

         (d)     The resignation of the Servicer in accordance with this
    Section 7.4 shall not affect the rights of the Seller hereunder.

         SECTION 7.5. Limitation on Liability of Servicer and Others. Neither
the Servicer nor any of the directors or officers or employees or agents of the
Servicer shall be under any liability to the Trust or the Certificateholders,
except as provided under this Agreement, for any action taken or for refraining
from the taking of any action pursuant to this Agreement or for errors in
judgment; provided, however, that this provision shall not protect the Servicer
or any such person against any liability that would otherwise be imposed by
reason of willful misfeasance, bad faith or negligence (except errors in
judgment) in the performance of duties or by reason of reckless disregard of
obligations and duties under the Agreement. The Servicer and any director or
officer or employee or agent of the Servicer may rely in good faith on any
document of any kind prima facie properly executed and submitted by any Person
respecting any matters arising under this Agreement.

         Except as provided in this Agreement, the Servicer shall not be under
any obligation to appear in, prosecute, or defend any legal action that shall
not be incidental to its duties to service the Contracts in accordance with
this Agreement and that in its opinion may involve it in any expense or
liability; provided, however, that the Servicer may undertake any reasonable
action that it may deem necessary or desirable in respect of this Agreement and
the rights and duties of the parties to this Agreement and the interests of the
Certificateholders under this Agreement.

                                  ARTICLE VIII

                                    Default

         SECTION 8.1. Events of Default. If any one of the following events
("Events of Default") shall occur and be continuing:





                                       64
<PAGE>   70
         (a)     any failure by the Servicer to deposit in or credit to the
    Collection Account, the Payahead Account or the Capitalized Interest
    Account any amount required under this Agreement to be so deposited or
    credited or to make the distribution required by Section 4.3 that shall
    continue unremedied for a period of three Business Days after written
    notice from the Trustee or the Insurer is received by the Servicer or
    discovery by an officer of the Servicer; or

         (b)     the Insurer or the Trustee shall not have received a report in
    accordance with Section 3.9 by the fifth Business Day prior to the
    Distribution Date with respect to which such report is due; or

         (c)     failure on the part of the Seller or the Servicer duly to
    observe or to perform in any material respect any other covenants or
    agreements of the Seller or the Servicer, set forth in this Agreement,
    which failure shall (x) materially and adversely affect the rights of
    Certificateholders, the Insurer or the Trustee and (y) continue unremedied
    for a period of 30 days after the date on which written notice of such
    failure, requiring the same to be remedied, shall have been given (i) to
    the Seller or the Servicer, as the case may be, by the Trustee or the
    Insurer, or (ii) to the Seller or the Servicer, as the case may be, and to
    the Trustee by the Holders of Certificates evidencing in the aggregate not
    less than 25% of the Pool Balance or by the Insurer; or

         (d)     the entry of a decree or order for relief by a court or
    regulatory authority having jurisdiction in respect of the Servicer or the
    Seller in an involuntary case under the federal bankruptcy laws, as now or
    hereafter in effect, or another present or future, federal or state,
    bankruptcy, insolvency or similar law, or appointing a receiver,
    liquidator, assignee, trustee, custodian, sequestrator or other similar
    official of the Servicer or the Seller or of any substantial part of its
    property, or ordering the winding up or liquidation of the affairs of the
    Servicer or the Seller and the continuance of any such decree or order
    unstayed and in effect for a period of 60 consecutive days or the
    commencement of an involuntary case under the federal bankruptcy laws, as
    now or hereinafter in effect, or another present or future federal or state
    bankruptcy, insolvency or similar law and such case is not dismissed within
    60 days; or

         (e)     the commencement by the Servicer or the Seller of a voluntary
    case under the federal bankruptcy laws, as now or hereafter in effect, or
    any other present or future, federal or state, bankruptcy, insolvency or
    similar law, or the consent by the Servicer to the appointment of or taking
    possession by a receiver, liquidator, assignee, trustee, custodian,
    sequestrator or other similar official of the Servicer or the Seller or of
    any substantial part of its property or the making by the Servicer of an
    assignment for the benefit of creditors or the failure by the Servicer or
    the Seller generally to pay its debts as such debts become due or the
    taking of corporate action by the Servicer or the Seller in furtherance of
    any of the foregoing;

         (f)     any change of control of the Servicer in violation of the
    covenant set forth in Section 7.2 hereof;





                                       65
<PAGE>   71
         (g)     the Servicer shall have failed in the reasonable opinion of
    the Insurer to service the Contracts in accordance with the Servicing
    Standards and such failure shall have continued unremedied for 30 days
    after written notice of such failure shall have been delivered to the
    Servicer by the Insurer; or

         (h)     Any representation, warranty or statement of the Servicer or
    the Seller made in this Agreement or any certificate, report or other
    writing delivered pursuant hereto shall prove to be incorrect in any
    material respect as of the time when the same shall have been made
    (excluding, however, any representation or warranty to which Sections 2.2
    or 3.6 shall be applicable so long as the Servicer or the Seller shall be
    in compliance with Sections 2.3 or 3.7, as the case may be), and the
    incorrectness of such representation, warranty or statement has a material
    adverse effect on the Trust and, within 30 days after written notice
    thereof shall have been given to the Servicer or the Seller by the Trustee
    or by the Holders of Certificates evidencing in the aggregate at least 25%
    of the Pool Balance or by the Insurer, the circumstance or condition in
    respect of which such representation, warranty or statement was incorrect
    shall not have been eliminated or otherwise cured;

then and in each and every case, so long as an Event of Default shall not have
been remedied, either the Trustee, the Insurer or the Holders of Certificates
evidencing in the aggregate not less than 25% of the Pool Balance, by notice
then given in writing to the Servicer (and to the Trustee and the Insurer if
given by the Certificateholders) may terminate all of the rights and
obligations of the Servicer under this Agreement. Notwithstanding the
foregoing, in the event that the Insurer is in default under the Surety Bond or
is subject to any Insurer Insolvency, the Insurer shall not have the right to
terminate or cause the termination of the Servicer. On or after the receipt by
the Servicer of such written notice, all authority and power of the Servicer
under this Agreement, whether with respect to the Certificates or the Contracts
or otherwise, shall pass to and be vested in a back-up servicer (the "Back-up
Servicer") selected by the Insurer (unless it is in default under the Surety
Bond or is subject to any Insurer Insolvency); and, without limitation the
Back-up Servicer is hereby authorized and empowered to execute and deliver, on
behalf of the Servicer, as attorney-in-fact or otherwise, any and all documents
and other instruments, and to do or accomplish all other acts or things
necessary or appropriate to effect the purposes of such notice of termination,
whether to complete the transfer and assignment of the Contracts and related
documents, to show the Back-up Servicer as a lienholder or secured party on
Title Documents or financing statements or otherwise. The Servicer shall
cooperate with the Back-up Servicer in effecting the termination of the
responsibilities and rights of the Servicer under this Agreement, including the
transfer to the Back-up Servicer for administration by it of all cash amounts
that shall at the time be held by the Servicer for deposit, shall have been
deposited by the Servicer in the Collection Account or Payahead Account, or
shall thereafter be received with respect to a Contract.

         SECTION 8.2. Notification to Certificateholders. Upon any termination
of, or appointment of a successor to, the Servicer pursuant to this Article
VIII, the Trustee shall give prompt written notice thereof to
Certificateholders at their respective addresses appearing in the Certificate
Register.





                                       66
<PAGE>   72
         SECTION 8.3. Waiver of Past Defaults. The Holders of Certificates
evidencing not less than 51% of the Pool Balance (not including Certificates
held by the Seller, the Servicer or any of their respective affiliates), with
the written consent of the Insurer, may, on behalf of all Certificateholders,
waive any default by the Servicer in the performance of its obligations
hereunder and its consequences, except a default in the failure to make any
required deposits to or payments from the Collection Account in accordance with
this Agreement. Upon any such waiver of a past default, such default shall
cease to exist, and any Event of Default arising therefrom shall be deemed to
have been remedied for every purpose of this Agreement. No such waiver shall
extend to any subsequent or other default or impair any right consequent
thereon except to the extent expressly so waived. The Servicer shall give
prompt written notice of any waiver to the Rating Agencies and the Trustee.

         SECTION 8.4. Insurer Direction of Insolvency Proceedings. The Trustee,
upon the actual knowledge of a Responsible Officer of the Trustee, shall
promptly notify the Insurer of (i) the commencement of any of the events or
proceedings (individually, an "Insolvency Proceeding") described in Sections
8.1(d) or 8.1(e) hereof or any such event or proceeding applicable to an
Obligor under a Contract and (ii) the making of any claim in connection with
any Insolvency Proceeding seeking the avoidance as a preferential transfer (a
"Preference Claim") of any payment of principal of, or interest on, any
Contract or any Certificate. Each Certificateholder, by its purchase of
Certificates, and the Trustee hereby agree that, so long as neither a default
under the Surety Bond nor an Insurer Insolvency has occurred and is continuing,
the Insurer may at any time during the continuation of an Insolvency Proceeding
direct all matters relating to such Insolvency Proceeding, including, without
limitation, (i) all matters relating to any Preference Claim, (ii) the
direction of any appeal of any order relating to any Preference Claim and (iii)
the posting of any surety, or performance bond pending any such appeal. The
Insurer shall be subrogated to the rights of the Trustee and each
Certificateholder in the conduct of any Insolvency Proceeding, including,
without limitation, all rights of any party to an adversary proceeding action
with respect to any court order issued in connection with any such Insolvency
Proceeding.





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                                   ARTICLE IX

                                  The Trustee

         SECTION 9.1. No Power to Engage in Business or to Vary Investments.
Notwithstanding any provision or agreement to the contrary in this Agreement or
in any other agreement, the Trustee, acting on behalf of the Trust (but not
individually), shall not have any power to engage in any business, commercial
or other activity for profit, and the Trustee and the Servicer shall not have
any power to vary the Trust Estate, whether consisting of a Contract, an
Eligible Investment or any other amount (other than cash payments received with
respect to Contracts) in any account maintained for the benefit of the Trust or
the Certificateholders or Certificate Owners, by disposition of said property,
investment or amount and the reinvestment of the proceeds realized or by any
other action calculated to take advantage of any variation or change in the
market or in market conditions, for the purpose of improving the investment or
return of the Certificateholders or Certificate Owners.

         SECTION 9.2. Duties of Trustee. The Trustee, both prior to and after
the occurrence of an Event of Default, of which a Responsible Officer of the
Trustee has actual knowledge shall undertake to perform such duties and only
such duties as are specifically set forth in the Agreement. If an Event of
Default shall have occurred and shall not have been cured, the Trustee shall
exercise such of the rights and powers vested in it by the Agreement, and shall
use the same degree of care and skill in its exercise, as a prudent person
would exercise or use under the circumstance in the conduct of his own affairs.

         The Trustee, upon receipt of all resolutions, certificates,
statements, opinions, reports, documents, orders or other instruments furnished
to the Trustee that shall be specifically required to be furnished pursuant to
any provision of this Agreement, shall examine them to determine whether they
comply as to form to the requirements of this Agreement.

         No provision of this Agreement shall be construed to relieve the
Trustee from liability for its own negligent action, its own negligent failure
to act (other than errors in judgment), or its own willful misconduct;
provided, however, that:

         (a)     prior to the occurrence of an Event of Default, and after the
    curing of all such Events of Default that may have occurred, the duties and
    obligations of the Trustee shall be terminated solely by the express
    provisions of this Agreement, the Trustee shall not be liable except for
    the performance of such duties and obligations as shall be specifically set
    forth in this Agreement, no implied covenants or obligations shall be read
    into this Agreement against the Trustee and, in the absence of bad faith on
    the part of the Trustee, the Trustee may conclusively rely on the truth of
    the statements and the correctness of the opinions expressed upon any
    certificates or opinions furnished to the Trustee and conforming to the
    requirements of this Agreement;

         (b)     the Trustee shall not be liable for an error of judgment made
    in good faith by a Responsible Officer or Responsible Officers of the
    Trustee, unless it shall be proved that the





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    Trustee shall have been negligent in performing its duties in accordance
    with the terms of this Agreement; and

         (c)     the Trustee shall not be liable with respect to any action
    taken, suffered, or omitted to be taken by it in good faith in accordance
    with the written direction of the Insurer or Holders of Certificates
    evidencing in the aggregate not less than 25% of the Pool/Prefunding
    Balance relating to the time, method, and place of conducting any
    proceeding for any remedy available to the Trustee, or exercising any trust
    or power conferred upon the Trustee, under this Agreement.

         The Trustee shall not be required to expend or risk its own funds or
otherwise incur financial liability in the performance of any of its duties
hereunder, or in the exercise of any of its rights or powers, if there shall be
reasonable ground for believing that the repayment of such funds or adequate
indemnity against such risk or liability is not reasonably assured to it, and
none of the provisions contained in this Agreement shall in any event require
the Trustee to perform or be responsible for the manner of performance of, any
of the obligations of the Servicer under this Agreement.

         The Trustee shall not be charged with knowledge of an Event of Default
or a failure by the Servicer to comply with any of its obligations unless and
until such time as a Responsible Officer shall have actual knowledge or have
received written notice thereof from the Servicer, the Insurer or any Holder of
Certificates evidencing in the aggregate not less than 10% of the
Pool/Prefunding Balance.

         In the event the entity acting as Trustee hereunder is also acting as
Capitalized Interest Agent or Back-up Servicer, the rights and protections
afforded to the Trustee pursuant to this Article IX shall also be afforded to
such Yield Supplement Agent and Back-up Servicer.

         Except for actions expressly authorized by the Agreement or, based
upon an Opinion of Counsel, in the best interests of Certificateholders, the
Trustee shall take no action reasonably likely to impair the security interest
of the Trust in any Contract or to impair the value of any Contract.

         The Trustee shall not be liable for the selection of Eligible
Investments or for any investment losses resulting from Eligible Investments.

         The Trustee shall have no duty to monitor the performance of the
Servicer, nor shall it have any liability in connection with the malfeasance or
nonfeasance by the Servicer. The Trustee shall have no liability in connection
with compliance of the Servicer or the Seller with statutory or regulatory
requirements related to the Contracts. The Trustee shall not make or be deemed
to have made any representations or warranties with respect to the Contracts or
the validity or sufficiency of any assignment of the Contracts to the Trust or
the Trustee.  All information obtained by the Trustee regarding the Obligors
and the Contracts, whether upon the exercise of its rights under the Agreement
or otherwise, shall be maintained by the Trustee in confidence, provided,
however, that the foregoing shall not be construed to prohibit (i) disclosure





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of any and all information that is or becomes publicly known, or information
obtained by the Trustee from sources other than the Seller, Insurer, any
Obligor or the Servicer, (ii) disclosure of any and all information (A) if
required to do so by any applicable statute, law, rule or regulation, (B) to
any government agency or regulatory or self-regulatory body having or claiming
authority to regulate or oversee any aspects of the Trustee's business or that
of its Affiliates, (C) pursuant to any subpoena, civil investigative demand or
similar demand or request of any court, regulatory authority, arbitrator or
arbitration to which the Trustee or an Affiliate or an officer, director,
employer or shareholder thereof is a party, (D) in any preliminary or final
offering circular, registration statement or contract or other document
pertaining to the transactions contemplated by the Agreement approved in
advance by the Seller or (E) to any Affiliate, independent or internal auditor,
agent, employee or attorney of the Trustee having a need to know the same,
provided that the Trustee advises such recipient of the confidential nature of
the information being disclosed, (iii) any other disclosure authorized by the
Seller or the Servicer or (iv) disclosure to the other parties to the
transactions contemplated by the Agreement.

         In the event that the Paying Agent or the Transfer Agent and
Certificate Registrar shall fail to perform any obligation, duty or agreement
in the manner or on the day required to be performed by the Paying Agent or the
Transfer Agent and Certificate Registrar, as the case may be, under the
Agreement, the Trustee shall be obligated promptly upon a Responsible Officer
obtaining actual knowledge thereof to perform such obligation, duty or
agreement in the manner so required to the extent the information necessary to
such performance is reasonably available to the Trustee after the Trustee has
made a reasonable effort to obtain such information. The Trustee shall not be
liable for the acts or omissions of any Paying Agent, any Authenticating Agent
or the Transfer Agent and Certificate Registrar appointed hereunder with due
care by the Trustee hereunder.

         SECTION 9.3. Trustee's Assignment of Purchased Contracts. With respect
to all Contracts repurchased by the Seller pursuant to Section 2.3 or purchased
by the Servicer pursuant to Sections 3.7 or 10.2, the Trustee on behalf of the
Trust shall assign, without recourse, representation, or warranty to the Seller
or the Servicer, as the case may be, all the Trust's right, title, and interest
in and to such Contract, and all security and documents relating thereto. The
preparation of documents necessary to consummate such an assignment shall be
the responsibility of the Seller, the Servicer or the Insurer, as the case may
be, and not the responsibility of the Trustee. If in any enforcement suit or
legal proceeding it shall be held that the Servicer may not enforce a Contract
on the ground that it shall not be a real party in interest or a holder
entitled to enforce the Contract, the Trustee shall, at the Servicer's expense,
take such steps as directed in writing by the Servicer to enforce the Contract,
including bringing suit in the Trustee's name or the names of the
Certificateholders, provided that nothing in this Section 9.3 shall require the
Trustee to qualify to do business in a state in which it is not so qualified on
the date of this Agreement.





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         SECTION 9.4. Certain Matters Affecting the Trustee. Except as
otherwise provided in Section 9.1:

         (a)     the Trustee may conclusively rely and shall be fully protected
    in acting or refraining from acting upon any resolution, Officer's
    Certificate, certificate of auditors or any other certificate, statement,
    instrument, opinion, report, notice, request, consent, order, appraisal,
    bond, note or other paper or document believed by it to be genuine and to
    have been signed or presented by the proper party or parties;

         (b)     the Trustee may consult with counsel and any Opinion of
    Counsel or any advice of such Counsel shall be full and complete
    authorization and protection in respect of any action taken or suffered or
    omitted by it under this Agreement in good faith and in accordance with
    such Opinion of Counsel or advice. A copy of any such Opinion of Counsel
    shall be provided to the Seller, the Servicer and the Insurer;

         (c)     the Trustee shall be under no obligation to exercise any of
    the rights or powers vested in it by this Agreement, or to institute,
    conduct or defend any litigation under this Agreement or in relation to
    this Agreement, at the request, order or direction of any of the
    Certificateholders pursuant to the provisions of this Agreement, unless
    such Certificateholders shall have offered to the Trustee reasonable
    security or indemnity against the cost, expenses, and liabilities that may
    be incurred therein or thereby. Nothing contained in this Agreement,
    however, shall relieve the Trustee of the obligations, upon the occurrence
    of an Event of Default (that shall not have been cured), to exercise such
    of the rights and powers vested in it by this Agreement, and to use the
    same degree of care and skill in their exercise as a prudent person would
    exercise or use under the circumstances in the conduct of his own affairs;
    provided that the Trustee shall not be deemed to have knowledge of the
    occurrence of an Event of Default unless and until such knowledge shall be
    (i) actual knowledge of a Responsible Officer or (ii) received in writing
    by a Responsible Officer;

         (d)     the Trustee shall not be personally liable for any action
    taken, suffered or omitted by it in good faith and believed by it to be
    authorized or within the discretion or rights or powers conferred upon it
    by this Agreement;

         (e)     prior to the occurrence of an Event of Default and after the
    curing of all Events of Default that may have occurred, the Trustee shall
    not be bound to make any investigation into the facts of matters stated in
    any resolution, certificate, statement, instrument, opinion, report,
    notice, request, consent, direction, order, approval, bond, note or other
    paper or document, unless requested in writing to do so by the Insurer or
    Holders of Certificates evidencing in the aggregate not less than 25% of
    the Pool Balance; provided, however, that if the payment within a
    reasonable time to the Trustee of the costs, expenses, or liabilities
    likely to be incurred by it in the making of such investigation shall be,
    in the opinion of the Trustee, not reasonably assured to the Trustee by the
    security afforded to it by the terms of this Agreement, the Trustee may
    require reasonable indemnity against such cost, expense, or liability as a
    condition to so proceeding. The reasonable expense of any and every such
    examination shall be paid by the Seller or, if paid by the Trustee, shall
    be reimbursed by the





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    Seller upon demand. Nothing in this clause (e) shall affect the obligation
    of the Seller to observe any applicable law prohibiting disclosure of
    information regarding the Obligors; provided the Trustee shall be entitled
    to make such further inquiry or investigation into such facts or matters as
    it may reasonably see fit, and if the Trustee shall determine to make such
    further inquiry or investigation, it shall be entitled to examine the books
    and records of the Seller, personally or by agent or attorney, at the sole
    cost and expense of the Seller;

         (f)     the Trustee may execute any of the trust powers hereunder or
    perform any duties under this Agreement either directly or by or through
    agents or attorneys or a custodian or nominee and the Trustee shall not be
    responsible for any misconduct or negligence on the part of, or for the
    supervision of any such agent, attorney, custodian or nominee appointed
    with due care by it hereunder;

         (g)     the Trustee shall not be required to make any initial or
    periodic examination of any documents or records related to the Contracts
    for the purpose of establishing the presence or absence of defects, the
    compliance by the Seller with its representations and warranties or for any
    other purpose; and

         (h)     in the event that the Trustee is also acting as Custodian,
    Paying Agent or Transfer Agent and Certificate Registrar hereunder, the
    rights and protections afforded to the Trustee pursuant to this Article IX
    shall also be afforded to such Custodian, Paying Agent, Transfer Agent and
    Certificate Registrar.

         SECTION 9.5. Trustee Not Liable for Certificates or Contracts. The
Trustee shall make no representations as to the validity or sufficiency of this
Agreement or of the Certificates (other than its execution of Certificates on
behalf of the Trust and the certificate of authentication on the Certificates)
or of any Contract or related document. The Trustee shall at no time have any
responsibility or liability for or with respect to the legality, validity, and
enforceability of any security interest in any Financed Vehicle or any
Contract, or the perfection and priority of such a security interest or the
maintenance of any such perfection and priority, or for or with respect to the
efficacy of the Trust or its ability to generate the payments to be distributed
to Certificateholders under this Agreement, including: the existence,
condition, location, and ownership of any Financed Vehicle; the existence and
enforceability of any insurance policy thereon; the existence and contents of
any Contract or any computer or other record thereof; the validity of the
assignment of any Contract to the Trust or of any intervening assignment; the
completeness of any Contract; the performance or enforcement of any Contract;
the compliance by the Seller with any warranty or representation made under
this Agreement or in any related document and the accuracy of any such warranty
or representation prior to the Trustee's receipt of written notice of any
noncompliance therewith or any breach thereof; any investment of monies by the
Servicer or any loss resulting therefrom (it being understood that the Trustee
shall remain responsible for any Trust property that it may hold); the acts or
omissions of the Seller or any Obligor; an action of the Servicer taken in the
name of the Trustee; or any action by the Trustee taken at the instruction of
the Servicer; provided, however, that the foregoing shall not relieve the
Trustee of its obligation to perform its duties under this Agreement. Except
with respect to a claim based on the failure of the Trustee to perform its
duties under this Agreement





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<PAGE>   78
or based on the Trustee's negligence or willful misconduct in the performance
of its duties hereunder, no recourse shall be had for any claim based on any
provision of this Agreement, the Certificates, or any Contract or assignment
thereof against the Trustee in its individual capacity. The Trustee shall not
have any personal obligation, liability, or duty whatsoever to any
Certificateholder or any other Person with respect to any such claim, and any
such claim shall be asserted solely against the Trust or any indemnitor who
shall furnish indemnity as provided in this Agreement. The Trustee shall not be
accountable for the use or application by the Seller of any of the Certificates
or of the proceeds of such Certificates, or for the use or application of any
funds paid to the Seller in respect of the Contracts.

         SECTION 9.6. Trustee May Own Certificates. The Trustee in its
individual or any other capacity, and any of its Affiliates, may become the
owner or pledgee of Certificates with the same rights as it would have if it
were not Trustee, subject to the definition of the term "Certificateholder" in
Section 1.1.

         SECTION 9.7. Trustee's Fees and Expenses. The Servicer shall covenant
and agree to pay to the Trustee, and the Trustee shall be entitled to,
reasonable compensation (which shall not be limited by any provision of law in
regard to the compensation of a trustee of an express trust) for all services
rendered by it in the execution of the trusts created by this Agreement and in
the exercise and performance of any of the powers and duties under this
Agreement of the Trustee. Other than as included in the Trustee's compensation,
the Servicer shall pay or reimburse the Trustee upon its request for all
reasonable expenses (including, without limitation, expenses incurred in
connection with notices or other communications to Certificateholders),
disbursements, and advances (including the reasonable compensation and the
expenses and disbursements of its counsel and of all persons not regularly in
its employ) incurred or made by the Trustee in accordance with this Agreement
or in defense of any action brought against it in connection with this
Agreement except any such expense, disbursement, or advance as may arise from
its negligence (other than errors in judgment) or bad faith or that is the
responsibility of Certificateholders under this Agreement.  Additionally, the
Seller, pursuant to Section 6.1, and the Servicer, pursuant to Section 7.1,
respectively, shall have agreed to indemnify the Trustee with respect to
certain matters, and certain Certificateholders, pursuant to Section 9.4, shall
have agreed to indemnify the Trustee under certain circumstances.
Notwithstanding the failure of the Servicer to perform any of its obligations
under this Section , the Trustee shall continue to perform its obligations
under this Agreement. The Servicer's covenant to pay the expenses,
disbursements and advances provided for above shall survive the termination of
this Agreement.

         SECTION 9.8. Indemnity of Trustee. The Trustee and its officers,
directors, agents and employees, shall be indemnified by the Servicer and held
harmless against any loss, liability, or expense (other than any amount owing
pursuant to Section 9.7) arising out of or incurred in connection with the
acceptance or performance of the trusts and duties contained in the Agreement
including the costs and expenses of defending against any claim or liability in
connection with the exercise or performance of any of its powers and duties
hereunder to the extent that (i) the Trustee shall not have been indemnified
for such loss, liability, or expense by the Seller pursuant to Section 6.1, the
Servicer pursuant to Section 7.1, or the Certificateholders pursuant to Section
9.4; (ii) such loss, liability, or expense shall not have been incurred by
reason





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of the Trustee's willful misfeasance, bad faith, or negligence (except for
errors in judgment); and (iii) such loss, liability, or expense shall not have
been incurred by reason of the Trustee's breach of its representations and
warranties pursuant to Section 9.14.

         SECTION 9.9. Eligibility Requirements for Trustee. The Trustee under
this Agreement shall at all times be a depository institution or trust company
organized and doing business under the laws of any state or the United States
of America; authorized under such laws to exercise corporate trust powers; and
having a combined capital and surplus of at least $50,000,000 and subject to
supervision or examination by federal or state authorities. If such depository
institution or trust company shall publish reports of condition at least
annually, pursuant to law or to the requirements of the aforesaid supervising
or examining authority, then for the purpose of this Section 9.9, the combined
capital and surplus of such depository institution or trust company shall be
deemed to be its combined capital and surplus as set forth in its most recent
report of condition so published. In case at any time the Trustee shall cease
to be eligible in accordance with the provisions of this Section 9.9, the
Trustee shall resign immediately in the manner and with the effect specified in
Section 9.10.

         SECTION 9.10. Resignation or Removal of Trustee. The Trustee may at
any time resign and be discharged from the trusts hereby created by giving
written notice thereof to the Servicer. Upon receiving such notice of
resignation, the Servicer shall promptly appoint a successor Trustee acceptable
to the Insurer by written instrument, in duplicate, one copy of which
instrument shall be delivered to the resigning Trustee and one copy to the
successor Trustee. If no successor Trustee shall have been so appointed and
have accepted appointment within 30 days after the giving of such notice of
resignation, the resigning Trustee may petition any court of competent
jurisdiction for the appointment of a successor Trustee.

         If at any time the Trustee shall cease to be eligible in accordance
with the provisions of Section 9.9 and shall fail to resign after written
request therefor by the Servicer with the written consent of the Insurer, or if
at any time the Trustee shall be legally unable to act, or shall be adjudged a
bankrupt or insolvent, or a receiver of the Trustee or of its property shall be
appointed, or any public officer shall take charge or control of the Trustee or
of its property or affairs for the purpose of rehabilitation, conservation, or
liquidation, then the Servicer may, with the written consent of the Insurer,
remove the Trustee. If it shall remove the Trustee under the authority of the
immediately preceding sentence, the Servicer shall promptly appoint a successor
Trustee by written instrument, in duplicate, one copy of which instrument shall
be delivered to the Trustee so removed and one copy to the successor Trustee.

         If the Trustee is acting as Custodian, any resignation or removal of
the Trustee will result in the automatic termination of the Trustee's duties as
Custodian effective concurrently with such resignation or removal. Upon such
termination or removal, the Trustee shall, upon the request of the Servicer,
deliver the Contract Documents to the facilities of the successor Trustee.

         Any resignation or removal of the Trustee and appointment of a
successor Trustee pursuant to any of the provisions of this Section 9.10 shall
not become effective until acceptance of appointment by the successor Trustee
pursuant to Section 9.11.





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         SECTION 9.11. Successor Trustee. Any successor Trustee appointed
pursuant to Section 9.10 shall execute, acknowledge, and deliver to the
Servicer and to its predecessor Trustee an instrument accepting such
appointment under this Agreement, and thereupon the resignation or removal of
the predecessor Trustee shall become effective and such successor Trustee,
without any further act, deed or conveyance, shall become fully vested with all
the rights, powers, duties, and obligations of its predecessor under this
Agreement, with like effect as if originally named as Trustee. The predecessor
Trustee shall deliver to the successor Trustee all documents and statements
held by it under this Agreement, or copies thereof, at the expense of the
Servicer; and the Servicer and the predecessor Trustee shall execute and
deliver such instruments and do such other things as may reasonably be required
for fully and certainly vesting and confirming in the successor Trustee all
such rights, powers, duties and obligations.

         No successor Trustee shall accept appointment as provided in this
Section 9.11 unless at the time of such acceptance such successor Trustee shall
be eligible pursuant to Section 9.9.

         Upon acceptance of appointment by a successor Trustee pursuant to this
Section 9.11, the Servicer shall mail notice of the successor of such Trustee
under this Agreement to all Holders of Certificates at their addresses as shown
in the Certificate Register. If the Servicer shall fail to mail such notice
within 10 days after acceptance of appointment by the successor Trustee, the
successor Trustee shall cause such notice to be mailed at the expense of the
Servicer.

         The respective obligations of the Seller and the Servicer described in
Sections 2.7, 3.14, 6.1, 7.1, 9.5, 9.7 and 9.8 shall survive the removal or
resignation of the Trustee as provided in this Agreement or the termination of
the Trust as provided in Section 10.1.

         No Trustee under this Agreement shall be liable for any action or
omission of any successor Trustee.

         SECTION 9.12. Merger or Consolidation of Trustee. Any corporation into
which the Trustee may be merged or converted or with which it may be
consolidated, or any corporation resulting from any merger, conversion or
consolidation to which the Trustee shall be a party, or any corporation
resulting from any merger, conversion or consolidation to which the Trustee
shall be a party, or any corporation succeeding to the business of the Trustee,
shall be the successor of the Trustee hereunder, provided such corporation
shall be eligible pursuant to Section 9.9, without the execution or filing of
any instrument or any further act on the part of any of the parties hereto,
anything herein to the contrary notwithstanding.

         SECTION 9.13. Appointment of Co-Trustee or Separate Trustee.
Notwithstanding any other provisions of this Agreement, at any time, for the
purpose of meeting any legal requirements of any jurisdiction in which any part
of the Trust or any Financed Vehicle may at the time be located, the Servicer
and the Trustee acting jointly shall have the power and shall execute and
deliver all instruments to appoint one or more Persons approved by the Trustee
to act as co-trustee, jointly with the Trustee, or separate trustee or separate
trustees, of all or any part of the Trust, and to vest in such Person, in such
capacity and for the benefit of the





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Certificateholders, such title to the Trust, or any part thereof, and, subject
to the other provisions of this Section 9.13, such powers, duties, obligations,
rights, and trusts as the Servicer and the Trustee may consider necessary or
desirable. If the Servicer shall not have joined in such appointment within 15
days after the receipt by it of a written request so to do, or in case an Event
of Default shall have occurred and be continuing, the Trustee alone shall have
the power to make such appointment. No co-trustee or separate trustee under
this Agreement shall be required to meet the terms of eligibility as a
successor trustee pursuant to Section 9.9 and no notice to Certificateholders
of the appointment of any co-trustee or separate trustee shall be required
pursuant to Section 9.11.

         Each and every separate trustee and co-trustee shall, to the extent
permitted by law, be appointed and act subject to the following provisions and
conditions:

                 (i)      all rights, powers, duties and obligations conferred
         or imposed upon the Trustee shall be conferred or imposed upon and
         exercised or performed by the Trustee and such separate trustee or
         co-trustee jointly (it being understood that such separate trustee or
         co-trustee is not authorized to act separately without the Trustee in
         joining in such act), except to the extent that under any law of any
         jurisdiction in which any particular act or acts are to be performed
         (whether as Trustee under this Agreement or as successor to the
         Servicer under this Agreement), the Trustee shall be incompetent or
         unqualified to perform such act or acts, in which event such rights,
         powers, duties, and obligations (including the holding of title to the
         Trust or any portion thereof in any such jurisdiction) shall be
         exercised and performed singly by such separate trustee or co-trustee,
         but solely at the direction of the Trustee;

                 (ii)     no trustee under this Agreement shall be personally
         liable by reason of any act or omission of any other trustee under
         this Agreement; and

                 (iii)    the Servicer and the Trustee acting jointly, or the
         Trustee acting alone may at any time accept the resignation of or
         remove any separate trustee or co-trustee.

         Any notice, request or other writing given to the Trustee shall be
deemed to have been given to each of the then separate trustees and
co-trustees, as effectively as if given to each of them. Every instrument
appointing any separate trustee or co-trustee shall refer to this Agreement and
the conditions of this Article IX. Each separate trustee and co-trustee, upon
its acceptance of the trusts conferred, shall be vested with the estates or
property specified in its instrument of appointment, either jointly with the
Trustee or separately, as may be provided therein, subject to all the
provisions of this Agreement, specifically including every provision of this
Agreement relating to the conduct of, affecting the liability of, or affording
protection to, the Trustee. Each such instrument shall be filed with the
Trustee and a copy thereof given to the Servicer.

         Any separate trustee or co-trustee may at any time, appoint the
Trustee, its agent or attorney-in-fact with full power and authority, to the
extent not prohibited by law, to do any lawful act under or in respect of this
Agreement on its behalf and in its name. No such appointment shall affect the
obligations of the Trustee hereunder. If any separate trustee or co-





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trustee shall die, become incapable of acting, resign or be removed, all of its
estates, properties, rights, remedies and trusts shall vest in and be exercised
by the Trustee, to the extent permitted by law, without the appointment of a
new or successor trustee.

         SECTION 9.14. Representations and Warranties of Trustee. The Trustee
hereby makes the following representations and warranties on which the Seller
and Certificateholders shall rely:

         (a)     the Trustee is a New York banking corporation duly organized,
    validly existing, and in good standing under the laws of New York;

         (b)     the Trustee has full power, authority and legal right to
    execute, deliver, and perform the Agreement, and has taken all necessary
    action to authorize the execution, delivery, and performance by it of the
    Agreement;

         (c)     the execution and delivery of the Agreement and the
    performance by the Trustee of its obligations under the Agreement does not
    violate any provision of the Articles of Association or Bylaws of the
    Trustee; and

         (d)     the Agreement has been duly authorized, executed and delivered
    by the Trustee and shall constitute the legal, valid, and binding agreement
    of the Trustee, enforceable in accordance with its terms except that (i)
    such enforcement may be subject to bankruptcy, insolvency, reorganization,
    moratorium or similar laws now or hereafter in effect relating to
    creditors' rights generally and (ii) the remedy of specific performance and
    injunctive and other forms of equitable relief may be subject to certain
    equitable defenses and to the discretion of the court before which any
    proceeding thereof may be brought.

         SECTION 9.15. Tax Returns. The Servicer shall prepare or shall cause
to be prepared any tax returns required to be filed by the Trust and furnish to
Certificateholders all information required by the Code or the regulations
thereunder and shall remit such returns to the Trustee for signature at least
five days before such returns are due to be filed. The Trustee, upon request,
will furnish the Servicer with all such information known to the Trustee as may
be reasonably required in connection with the preparation of all tax returns of
the Trust, and shall, upon request, execute such returns. In no event shall the
Trustee in its individual capacity be liable for any liabilities, costs or
expenses of the Trust, the Certificateholders, the Seller or the Servicer
arising under any tax law or regulation, including, without limitation,
federal, state or local income or excise taxes or any other tax imposed on or
measured by income (or any interest or penalty with respect thereto or arising
from any failure to comply therewith).

         SECTION 9.16. Trustee May Enforce Claims Without Possession of
Certificates. All rights of action and claims under the Agreement or the
Certificates may be prosecuted and enforced by the Trustee without the
possession of any of the Certificates or the production thereof in any
proceeding relating thereto, and any such proceeding instituted by the Trustee
shall be brought in its own name or in its capacity as Trustee.  Any recovery
of judgment shall, after provision for the payment of the reasonable
compensation, expenses, disbursements and





                                       77
<PAGE>   83
advances of the Trustee, its agents and counsel, be for the ratable benefit of
the Certificateholders in respect of which such judgment has been recovered.

         SECTION 9.17. Suits for Enforcement. In case an Event of Default or
other default by the Servicer or the Seller hereunder shall occur and be
continuing, the Trustee, in its discretion, may proceed to protect and enforce
its rights and the rights of the Certificateholders under the Agreement by a
suit, action or proceeding in equity or at law or otherwise whether for the
specific performance of any covenant or agreement contained in the Agreement or
in aid of the execution of any power granted in the Agreement or the
enforcement of any other legal, equitable or other remedy, as the Trustee,
being advised by counsel, shall deem most effectual to protect and enforce any
of the rights of the Trustee or the Certificateholders.

         SECTION 9.18. Maintenance of Office or Agency. The Trustee shall
maintain at its expense in New York, New York, an office or offices or agency
or agencies where notices and demands to or upon the Trustee in respect of the
Certificates and this Agreement may be served. The Trustee initially designates
the Corporate Trust Office as its office for such purposes. The Trustee will
give prompt written notice to the Servicer, the Paying Agent, the Transfer
Agent and Certificate Registrar, the Insurer and to Certificateholders of any
change in the location of such office or agency.

                                   ARTICLE X

                                  Termination

         SECTION 10.1. Termination of the Trust. The respective obligations and
responsibilities of the Seller, the Servicer and the Trustee created hereby and
the Trust created by this Agreement shall terminate upon the earlier of (i) the
maturity or other liquidation of the last Contract and the disposition of any
amounts received upon liquidation of any remaining Contracts in the Trust
(including the purchase of the Contracts by the Servicer pursuant to Section
10.2); (ii) (a) the payment to Certificateholders of all amounts required to be
paid to them pursuant to this Agreement and the disposition of all property
held as part of the Trust, (b) termination of the Surety Bond in accordance
with its terms and surrender of the Surety Bond to the Insurer for
cancellation, (c) the payment of all amounts owed to the Trustee under this
Agreement and (d) the payment of all amounts owed to the Insurer under the
Insurance Agreement, provided, however, that in no event shall the trust
created by the Agreement continue beyond the expiration of 21 years from the
death of the survivor of the descendants, living on the date of this Agreement,
of Joseph P. Kennedy, formerly United States representative at the Court of St.
James. The Servicer shall promptly notify the Trustee and the Insurer of any
respective termination pursuant to this Section 10.1.

         Notice of any termination, specifying the Distribution Date upon which
the Certificateholders may surrender their Certificates to the Trustee for
payment of the final distribution and cancellation, shall be given promptly by
the Trustee by letter to Certificateholders mailed not later than the 10th day
prior to the specified Distribution Date and not earlier than the 15th day of
the month prior to the month of the specified Distribution Date





                                       78
<PAGE>   84
stating the amount of any such final payment, and that the Record Date
otherwise applicable to such Distribution Date is not applicable, payments
being made only upon presentation and surrender of the Certificates at the
office or agency of the Trustee therein specified. The Trustee shall give such
notice to the Certificate Registrar at the time such notice is given to
Certificateholders. Upon presentation and surrender of the Certificates, the
Trustee shall cause to be distributed to Certificateholders amounts
distributable on such Distribution Date pursuant to Section 4.3.

         In the event that all of the Certificateholders shall not surrender
their Certificates for cancellation within six months after the date specified
in the above-mentioned written notice, the Servicer shall give a second written
notice to the remaining Certificateholders to surrender their Certificates for
cancellation and receive the final distribution with respect thereto. If within
one year after the second notice all the Certificates shall not have been
surrendered for cancellation, the Servicer may take appropriate steps, or may
appoint an agent to take appropriate steps, to contact the remaining
Certificateholders concerning surrender of their Certificates, and the cost
thereof shall be paid out of the funds and other assets that shall remain
subject to the Agreement. Any funds remaining in the Trust after exhaustion of
such remedies and after all payments to be made to the Trustee and the Insurer
shall be distributed by the Trustee to a charity designated by the Servicer.

         Notwithstanding any provision to the contrary, the Trustee shall
retain all of its rights and powers and obligations and duties under Section
8.5 in the event of any Insolvency Proceeding and the Trustee shall be entitled
to all the protections, rights and immunities provided in Article IX in
connection with any such Insolvency Proceeding.

         SECTION 10.2. Optional Purchase of All Contracts. On each Distribution
Date as of which the Pool Factor (after giving effect to the Principal
Distribution for such Distribution Date) shall be less than .100000, the
Servicer shall have the option to purchase the corpus of the Trust at a price
equal to the Repurchase Amount plus all amounts due and owing to the Insurer
under the Insurance Agreement. To exercise such option, the Servicer shall pay
to the Trustee by deposit into the Collection Account: (1) for the benefit of
the Certificateholders, the Repurchase Amount of all Contracts that were
Outstanding at the beginning of the Collection Period ending immediately prior
to such Distribution Date, and (2) for the benefit of the Insurer, all amounts
due and owing to the Insurer pursuant to the Insurance Agreement. Such purchase
shall be deemed to have occurred on the last day of such Collection Period.

                                   ARTICLE XI

                            Miscellaneous Provisions

         SECTION 11.1. Amendment. This Agreement may be amended by the Seller,
the Servicer and the Trustee, collectively with the prior written consent of
the Insurer, but without the consent of any of the Certificateholders, to cure
any ambiguity, to correct or supplement any provisions in the Agreement, or to
add any other provisions with respect to matters or questions arising under
this Agreement that shall not be inconsistent with the provisions of this
Agreement;





                                       79
<PAGE>   85
provided, however, that such action shall not, as evidenced by an Opinion of
Counsel, adversely affect in any material respect the interests of any
Certificateholder or the Insurer.

         This Agreement may also be amended from time to time by the Seller,
the Servicer and the Trustee with the consent of the Holders of Certificates
evidencing in the aggregate not less than 51% of the Pool/Prefunding Balance
and the Insurer for the purpose of adding any provisions to or changing in any
manner or eliminating any of the provisions of the Agreement, or of modifying
in any manner the rights of the Holders of Certificates; provided, however,
that no such amendment shall (i) increase or reduce in any manner the amount
of, or accelerate or delay the timing of, collections of payments on Contracts
or distributions that shall be required to be made on any Certificate or (ii)
reduce the aforesaid percentage required to consent to any such amendment,
without the consent of the Holders of all Certificates then outstanding.

         Promptly after the execution of any such amendment or consent pursuant
to the next preceding paragraph, the Trustee shall furnish written notification
of the substance of such amendment or consent to each Certificateholder.

         It shall not be necessary for the consent of Certificateholders
pursuant to this Section 11.1 to approve the particular form of any proposed
amendment or consent, but it shall be sufficient if such consent shall approve
the substance thereof. The manner of obtaining such consents and of evidencing
the authorization of the execution thereof by Certificateholders shall be
subject to such reasonable requirements as the Trustee may prescribe.

         The Trustee may, but shall not be obligated to, enter into any such
amendment which affects the Trustee's own rights, duties or immunities under
this Agreement or otherwise and any such amendment shall be unenforceable in
its entirety absent the execution of such amendment by the Trustee.

         SECTION 11.2.      Protection of Title to Trust.

         (a)     The Servicer shall execute and file such financing statements
    and cause to be executed and filed such continuation statements, all in
    such manner and in such places as may be required by law fully to preserve,
    maintain, and protect the interest of the Certificateholders, the Insurer
    and the Trustee under this Agreement in the Contracts and in the proceeds
    thereof. The Servicer shall deliver (or cause to be delivered) to the
    Trustee file-stamped copies of, or filing receipts for, any document filed
    as provided above, as soon as available following such filing.

         (b)     Neither the Seller nor the Servicer shall change its name,
    identity, or corporate structure in any manner that would, could or might
    make any financing statement or continuation statement filed by the
    Servicer in accordance with paragraph (a) above seriously misleading within
    the meaning of Section 9-402(7) of the UCC, unless it shall have given the
    Trustee and the Insurer at least 60 days' prior written notice thereof.





                                       80
<PAGE>   86
         (c)     The Seller and the Servicer shall give the Trustee and the
    Insurer at least 60 days' prior written notice of any relocation of the
    principal executive office of the Seller and the Servicer if, as a result
    of such relocation, the applicable provisions of the UCC would require the
    filing of any amendment of any previously filed financing or continuation
    statement or of any new financing statement.  The Servicer shall at all
    times maintain each office from which it shall service Contracts, and its
    principal executive office, within the United States of America.

         (d)     The Servicer shall maintain or cause to be maintained accounts
    and records as to each Contract accurately and in sufficient detail to
    permit (i) the reader thereof to know at any time the status of such
    Contract, including payments and recoveries made and payments owing (and
    the nature of each) and (ii) reconciliation between payments or recoveries
    on (or with respect to) each Contract and the amounts from time to time
    deposited in or credited to the Certificate Amount and Payahead Account in
    respect of such Contract.

         (e)     The Servicer shall maintain or cause to be maintained its
    computer systems so that, from and after the time of sale under the
    Agreement of the Contracts to the Trust, the Servicer's master computer
    records (including any back-up archives) that shall refer to a Contract
    indicate clearly that such Contract is owned by the Trustee as trustee of
    the Trust. Indication of the Trustee's ownership of a Contract shall be
    deleted from or modified on the Servicer's computer systems when, and only
    when, the Contract shall have been paid in full or repurchased or shall
    have become a Liquidated Contract.

         (f)     If at any time the Seller or the Servicer shall propose to
    sell, grant a security interest in, or otherwise transfer any interest in
    automotive retail installment sales contracts to any prospective purchaser,
    lender, or other transferee, the Servicer shall give or cause to be given
    to such prospective purchaser, lender, or other transferee computer tapes,
    records or printouts (including any restored from back-up archives) that,
    if they shall refer in any manner whatsoever to any Contract, shall
    indicate clearly that such Contract has been sold and is owned by the
    Trust.

         (g)     The Servicer shall permit the Trustee and the Insurer and its
    agents at any time during normal business hours to inspect, audit, and make
    copies of and abstracts from the Servicer's records regarding any Contract.

         (h)     Upon request, the Servicer shall furnish to the Trustee and
    the Insurer, within five Business Days, a list of all Contracts then held
    as part of the Trust, together with a reconciliation of such list to the
    Schedule of Contracts and to each of the Servicer's Certificates furnished
    before such request indicating removal of Contracts from the Trust.

         (i)     The Servicer shall deliver to the Trustee and the Insurer:

                 (i)      promptly after the execution and delivery of this
         Agreement and of each amendment hereto and on each Subsequent Closing
         Date, an Opinion of Counsel either (A) stating that, in the opinion of
         such Counsel, all financing statements and continuation





                                       81
<PAGE>   87
         statements have been executed and filed that are necessary fully to
         preserve and protect the interest of the Trustee and the Insurer in
         the Contracts, and reciting the details of such filings or referring
         to prior Opinions of Counsel in which such details are given or (B)
         stating that, in the opinion of such Counsel, no such action shall be
         necessary to preserve and protect such interest; and

                 (ii)     within 90 days after the beginning of each calendar
         year beginning with the first calendar year beginning more than three
         months after the Cut-Off Date an Opinion of Counsel, dated as of a
         date during such 90-day period, either (A) stating that, in the
         opinion of such counsel, all financing statements and continuation
         statements have been executed and filed that are necessary fully to
         preserve and protect the interest of the Trustee in the Contracts, and
         reciting the details of such filings or referring to prior Opinions of
         Counsel in which such details are given or (B) stating that, in the
         opinion of such counsel, no such action shall be necessary to preserve
         and protect such interest.

         (j)     The Seller shall, to the extent required by applicable law,
    cause the Certificates to be registered with the Securities and Exchange
    Commission pursuant to Section 12(b) or Section 12(g) of the United States
    Securities Exchange Act of 1934, as amended within the time periods
    specified in such sections.

         (k)     For the purpose of facilitating the execution of this
    Agreement and for other purposes, this Agreement may be executed
    simultaneously in any number of counterparts, each of which counterpart
    shall be deemed to be an original, and all of which counterparts shall
    constitute but one and the same instrument.

         SECTION 11.3. Limitation on Rights of Certificateholders. The death or
incapacity of any Certificateholder shall not operate to terminate the
Agreement or the Trust, nor entitle such Certificateholder's legal
representatives or heirs to claim an accounting or to take any action or
commence any proceeding in any court for a partition or winding up of the
Trust, nor otherwise affect the rights, obligations, and liabilities of the
parties to the Agreement or any of them.

         Except as expressly provided herein, no Certificateholder shall have
any right to vote or in any manner otherwise control the operation and
management of the Trust, or the obligations of the parties to this Agreement,
nor shall anything in this Agreement set forth, or contained in the terms of
the Certificates, be construed so as to constitute the Certificateholders from
time to time as partners or members of an association; nor shall any
Certificateholder be under any liability to any third person by reason of any
action taken pursuant to any provision of this Agreement.

         No Certificateholder shall have any right by virtue or by availing
itself of any provisions of this Agreement to institute any suit, action, or
proceeding in equity or at law upon or under or with respect to this Agreement,
unless such Holder previously shall have given to the Trustee a written notice
of default and of the continuance thereof, as hereinbefore provided, and unless
also the Holders of Certificates evidencing in the aggregate not less than 25%
of the Pool Balance with the consent of the Insurer shall have made written
request upon the Trustee to institute such action, suit or proceeding in its
own name as Trustee under this Agreement and shall have





                                       82
<PAGE>   88
offered to the Trustee such reasonable indemnity as it may require against the
costs, expenses, and liabilities to be incurred therein or thereby, and the
Trustee, for 30 days after its receipt of such notice, request, and offer of
indemnity, shall have neglected or refused to institute any such action, suit
or proceeding; no one or more Holders of Certificates shall have any right in
any manner whatever by virtue or by availing itself or themselves of any
provisions of this Agreement to affect, disturb, or prejudice the rights of the
Holders of any other of the Certificates, or to obtain or seek to obtain
priority over or preference to any other such Holders, or to enforce any right,
under this Agreement, except in the manner in the Agreement provided in the
Agreement and for the equal, ratable, and common benefit of all
Certificateholders. For the protection and enforcement of the provisions of
this Section 11.3, each Certificateholder and the Trustee shall be entitled to
such relief as can be given either at law or in equity.

         SECTION 11.4. GOVERNING LAW. THIS AGREEMENT SHALL BE CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF CALIFORNIA AND THE OBLIGATIONS,
RIGHTS, AND REMEDIES OF THE PARTIES UNDER THIS AGREEMENT SHALL BE DETERMINED IN
ACCORDANCE WITH SUCH LAWS EXCEPT THAT THE DUTIES OF THE TRUSTEE SHALL BE
GOVERNED BY THE LAWS OF THE STATE OF NEW YORK.

         SECTION 11.5. Notices. All demands, notices, and communications under
the Agreement shall be in writing, personally delivered or mailed by certified
mail, return receipt requested, and shall be deemed to have been duly given
upon receipt (i) in the case of the Seller, at 8001 Irvine Center Drive, 6th
Floor, Irvine, CA 92618, Attention: President, facsimile 714-450-5530, (ii) in
the case of the Servicer, at 8001 Irvine Center Drive, 5th Floor, Irvine,
California 92618, Attention: Regan E. Kelly, Executive Vice President,
facsimile 714-450-5530, (iii) in the case of the Insurer, at 885 Third Avenue,
New York, New York 10022, Attention: Managing Director, Credit Enhancement,
facsimile (212) 755- 5462, and (iv) in the case of the Trustee or the Back-up
Servicer, at the Corporate Trust Office. Any notice required or permitted to be
mailed to a Certificateholder shall be given by first class mail, postage
prepaid, at the address of such Holder as shown in the Certificate Registrar.
Any notice so mailed within the time prescribed in this Agreement shall be
conclusively presumed to have been duly given, whether or not the
Certificateholder shall receive such notice.

         SECTION 11.6. Severability of Provisions. If any one or more of the
covenants, agreements, provisions, or terms of this Agreement shall be for any
reason whatsoever held invalid, then such covenants, agreements, provisions, or
terms shall be deemed severable from the remaining covenants, agreements,
provisions, or terms of this Agreement and shall in no way affect the validity
or enforceability of the other provisions of this Agreement or of the
Certificates or the rights of the Holders thereof.

         SECTION 11.7. Assignment. Notwithstanding anything to the contrary
contained herein, except as provided in Sections 6.2 and 7.2, neither the
Seller nor the Servicer may transfer or assign all, or a portion of, its
rights, obligations and duties under the Agreement unless such transfer or
assignment (i) (A) will not result in a reduction or withdrawal by Standard &
Poor's or Moody's of the rating then assigned to the Certificates and (B) the
Trustee and the Insurer





                                       83
<PAGE>   89
have consented to such transfer or assignment, or (ii) the Insurer, the Trustee
and Holders of Certificates evidencing not less than 51% of the Pool Balance
consent thereto. Any transfer or assignment with respect to the Servicer of all
of its rights, obligations and duties will not become effective until a
successor Servicer has assumed the Servicer's rights, duties and obligations
under the Agreement. In the event of a transfer or assignment pursuant to
clause (ii) above, the Rating Agencies shall be provided with notice of such
transfer or assignment.

         SECTION 11.8. Certificates Nonassessable and Fully Paid.
Certificateholders shall not be personally liable for obligations of the Trust.
The interests represented by the Certificates shall be nonassessable for any
losses or expenses of the Trust or for any reason whatsoever, and, upon
authentication thereof by the Trustee pursuant to Section 5.2, Certificates
shall be deemed fully paid.

         SECTION 11.9. Third Party Beneficiaries. Except as otherwise
specifically provided herein with respect to the Certificateholders, the
parties to this Agreement hereby manifest their intent that no third party
other than the Insurer shall be deemed a third party beneficiary of this
Agreement, and specifically that the Obligors are not third party beneficiaries
of this Agreement.

         SECTION 11.10. Insurer Default or Insolvency. If a default under the
Surety Bond has occurred and is continuing or an Insurer Insolvency has
occurred, any provision giving the Insurer the right to direct, appoint or
consent to, approve of, or take any action (or waive any right to take action)
under this Agreement, shall be inoperative during the period of such default or
the period from and after such Insurer Insolvency and such consent or approval
shall be deemed to have been given for the purpose of such provisions; provided
that the consent of the Insurer shall be required at all times with respect to
any amendment of this Agreement pursuant to Section 11.1.

         SECTION 11.11. Tax Matters. The parties hereto intend that the Trust
shall be a grantor trust for federal and state income tax purposes and not as
an association taxable as a corporation. All provisions of this Agreement shall
be construed so as to effectuate such intent.

         This Agreement may be executed in several counterparts, each of which
shall be an original and all of which shall constitute but one and the same
instrument.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be duly executed by their respective officers thereunto duly authorized as of
the day and year first above written.

                                      ONYX ACCEPTANCE FINANCIAL CORPORATION
                                      as Seller

                                      By:  ________________________________
                                           Name:
                                           Title:





                                       84
<PAGE>   90
                                    ONYX ACCEPTANCE CORPORATION
                                    as Servicer

                                    By:  ________________________________
                                         Name:
                                         Title:

                                    BANKERS TRUST COMPANY,
                                    not in its individual capacity but solely as
                                    Trustee

                                    By:  ________________________________
                                         Name:
                                         Title:





                                       85
<PAGE>   91
                                                                       Exhibit A

                              Form of Appointment
                                  of Custodian



[Name and address of Custodian]



         Re:     Onyx Acceptance 1997-4 Grantor Trust
                 ___% Auto Receivable Pass-Through Certificates, 1997-4

Dear Sirs:

         Reference is hereby made to the Pooling and Servicing Agreement (the
"Agreement") dated as of December 1, 1997 among Onyx Acceptance Corporation,
Bankers Trust Company, as Trustee and Back-up Servicer (the "Trustee"), Onyx
Acceptance Financial Corporation and you. Terms used herein which are defined
in the Agreement have the respective meanings set forth in the Agreement.

         The Trustee hereby revocably appoints you as the agent of the Trustee
to act as custodian, in accordance with the terms and provisions of the
Agreement, for the Contract Documents listed in Section 2.4 of the Agreement
relating to each Contract and the related Obligor and Financed Vehicle. Please
acknowledge your acceptance of such appointment and your agreement to act as
custodian in accordance with the terms and provisions of the Agreement by
signing below in the space indicated therefor.

         By accepting such appointment you acknowledge that the Trustee may
terminate such appointment at any time, with or without cause, by written
notice to you.

                                       Very truly yours,

                                       BANKERS TRUST COMPANY,
                                       not in its individual capacity
                                       but solely as Trustee

                                       By:________________________________
                                          Name:
                                          Title:





<PAGE>   92
ACCEPTED AND AGREED:

ONYX ACCEPTANCE CORPORATION


By:  ______________________________
     Name:
     Title:

CONSENTED AND AGREED:

CAPITAL MARKETS ASSURANCE CORPORATION


By:  ____________________________________
     Name:
     Title:





                                       2
<PAGE>   93
                                                                       EXHIBIT B

                      SEE REVERSE FOR CERTAIN DEFINITIONS

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION, TO ISSUER OR ITS AGENT FOR
REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS
REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY
AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (AND ANY PAYMENT
IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY), ANY TRANSFER, PLEDGE, OR OTHER
USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS
THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

                      ONYX ACCEPTANCE 1997-4 GRANTOR TRUST

            _____% AUTO LOAN PASS-THROUGH CERTIFICATE, SERIES 1997-4

evidencing a fractional undivided interest in the Trust, as defined below, the
property of which includes a pool of fixed rate Rule of 78's and Simple
Interest Method motor vehicle retail installment sale contracts secured by new
and used automobiles and light-duty trucks, sold to the Trust by Onyx
Acceptance Financial Corporation.

(This Certificate does not represent an interest in or obligation of Onyx
Acceptance Financial Corporation, Onyx Acceptance Corporation, or any of their
respective affiliates.)

Certificate No.
Final Distribution Date:  April 15, 2004
CUSIP:  _____________________

         THIS CERTIFIES THAT CEDE & CO. is the registered owner of a _________
dollar, nonassessable, fully paid, fractional undivided interest, in the amount
set forth above, in the Onyx Acceptance Grantor Trust, 1997-4 (the "Trust")
formed by Onyx Acceptance Financial Corporation (the "Seller"). The Trust was
created pursuant to a Pooling and Servicing Agreement dated as of December 1,
1997 (the "Agreement") among the Seller, Onyx Acceptance Corporation, as
Servicer (the "Servicer"), and Bankers Trust Company, as Trustee (the
"Trustee"), a summary of certain of the pertinent provisions of which is set
forth below. This Certificate is one of the duly authorized "Certificates"
(herein called the "Certificates"). This Certificate is issued under and is
subject to the terms, provisions, and conditions of the Agreement, to which
Agreement the Holder of this Certificate by virtue of the acceptance hereof
assents and by which such Holder is bound. The property in the Trust includes:
(i) a pool of fixed rate Rule of 78's and Simple Interest Method motor vehicle
retail installment sales contracts (the "Initial Contracts") purchased from the
Seller and secured by new and used automobiles and





<PAGE>   94
light-duty trucks (the "Initial Financed Vehicles"), (ii) certain documents
relating to the Initial Contracts, (iii) certain monies due thereunder on or
after the Cut-Off Date, (iv) security interests in the Initial Financed
Vehicles and the rights to receive proceeds from claims on certain insurance
policies covering the Initial Financed Vehicles or the individual Obligor under
each related Initial Contract and the Seller's right to proceeds under the
Blanket Insurance Policy, (v) all amounts on deposit in the Collection Account,
including all Eligible Investments credited thereto (but excluding investment
earnings thereon), (vi) the benefits under an irrevocable principal/interest
surety bond issued by Capital Markets Assurance Corporation (the "Insurer"),
(vii) certain rights of the Seller under the Purchase Agreement, (viii) all
right, title and interest of the Seller under the Capitalized Interest
Agreement, dated as of December 1, 1997 between the Seller and Onyx, (ix)
amounts on deposit in a trust account established for the benefit of the
Certificateholders (the "Prefunding Account") and (x) all proceeds of the
foregoing. From time to time during the Funding Period, and as frequently as
each Business Day (each such day a "Subsequent Transfer Date"), the Trust will
purchase from the Seller with monies on deposit in the Prefunding Account,
additional Rule of 78's Contracts and Simple Interest Contracts (the
"Subsequent Contracts"), secured by new and used automobile and light-duty
trucks (the "Subsequent Financed Vehicles"). As of each Subsequent Transfer
Date, the Trust Estate will include the Subsequent Contracts delivered to the
Trustee on that date, certain documents relating to the Subsequent Contracts,
certain monies due under the Subsequent Contracts after the related Subsequent
Transfer Dates, security interests in the Subsequent Financed Vehicles and the
right to receive proceeds from claims under certain insurance policies in
respect of individual Subsequent Financed Vehicles or the related Obligors.

         Under the Agreement, there will be a monthly pro rata distribution to
the Certificateholders of record on the 15th day of each month or, if such 15th
day is not a Business Day, the next succeeding Business Day (the "Distribution
Date"), commencing on _________________, of such Certificateholder's fractional
undivided interest in all amounts allocable to principal and interest from any
applicable source described in the Agreement. The monthly interest on each
given Distribution Date shall be the product of one-twelfth the Pass-Through
Rate and the Pool/Prefunding Balance as of the end of the immediately preceding
Collection Period (or if the current Distribution Date is the first
Distribution Date as of the Closing Date) plus the amount of interest
previously due but not paid to Certificateholders, if any. The monthly
principal on each given Distribution Date shall be the sum of the Aggregate
Scheduled Balance Decline during the related Collection Period and, with
respect to the Final Funding Period Distribution Date, the Prepayment Amount.
The distribution is more fully described in the Agreement.

         Distributions on this Certificate will be made by the Trustee by check
mailed to the Certificateholder of record in the Certificate Register without
the presentation or surrender of this Certificate or the making of any notation
hereon. Except as otherwise provided in the Agreement and notwithstanding the
above, the final distribution on this Certificate will be made after due notice
by the Trustee of the pendency of such distribution and only upon presentation
and surrender of this Certificate at the office or agency maintained for that
purpose by the Trustee and Certificate Registrar in the Borough of Manhattan,
the City of New York.





                                       2
<PAGE>   95
         Reference is hereby made to the further provisions of this Certificate
set forth on the reverse hereof, which further provisions shall for all
purposes have the same effect as if set forth at this place.

         All capitalized terms used herein not otherwise defined shall have the
meaning assigned thereto in the Agreement.

         Unless the authentication hereon shall have been executed by an
authorized officer of the Trustee or by an authenticating agent acting on
behalf of the Trustee, by manual signature, this certificate shall not entitle
the holder hereof to any benefit under the Agreement or be valid for any
purpose.

         IN WITNESS WHEREOF, the Trustee, on behalf of the Trust, and not in
its individual capacity, has caused this Certificate to be duly executed.

                                       ONYX ACCEPTANCE 1997-4 GRANTOR TRUST

                                       BANKERS TRUST COMPANY,
                                       not in its individual capacity, but
                                       solely as Trustee

                                       By__________________________________
                                               Authorized Signatory

         This is one of the Certificates referred to in the within-mentioned
Agreement.

                                       BANKERS TRUST COMPANY, as Trustee


                                       By___________________________________
                                               Authorized Signatory





                                       3
<PAGE>   96
                            [REVERSE OF CERTIFICATE]

         The Certificates do not represent an obligation of, or an interest in,
the Seller, the Servicer, the Trustee or any affiliate of any of them. The
Certificates are limited in right of payment to certain collections and
recoveries respecting the Contracts and payments under the Surety Bond, all as
more specifically set forth herein and in the Agreement. A copy of the
Agreement may be examined by any Certificateholder upon request during normal
business hours at the corporate administrative offices of the Seller currently
located at 8001 Irvine Center Drive, 5th Floor, Irvine, California 92618 and at
such other places, if any, designated by the Seller.

         The Agreement permits, with certain exceptions therein provided, the
amendment and the modification of the rights and obligations of the Seller and
the Servicer and the rights of the Certificateholders under the Agreement at
any time by the Seller, the Servicer and the Trustee with the consent of the
Holders of Certificates evidencing in the aggregate not less than 51% of the
Pool/Prefunding Balance and the Insurer provided, however, that no such
amendment shall (a) increase or reduce in any manner the amount of, or
accelerate or delay the timing of, collections of payments on Contracts or
distributions that shall be required to be made on any Certificate or (b)
reduce the aforesaid percentage required to consent to any such amendment,
without the consent of the Holders of all Certificates then outstanding. Any
such consent by the Holder of this Certificate shall be conclusive and binding
on such Holder and upon all future Holders of this Certificate and of any
Certificate issued upon the transfer hereof or in exchange hereof or in lieu
hereof whether or not notation of such consent is made upon this Certificate.
The Agreement also permits the amendment thereof, in certain limited
circumstances, without the consent of the Holder of any of the Certificates.

         As provided in the Agreement, the transfer of this Certificate is
registrable in the Certificate Register upon surrender of this Certificate for
registration of transfer at the offices or agencies maintained by the Trustee
in its capacity as Certificate Registrar, or by any successor Certificate
Registrar, in the Borough of Manhattan, the City of New York, accompanied by a
written instrument of transfer in form satisfactory to the Trustee and the
Certificate Registrar duly executed by the Holder hereof or such Holder's
attorney duly authorized in writing, and thereupon one or more new Certificates
of authorized denominations evidencing the same aggregate interest in the Trust
will be issued to the designated transferee.

         The Certificates are issuable only as registered Certificates without
coupons in denominations of $1,000 and integral multiples thereof. As provided
in the Agreement, Certificates are exchangeable for new Certificates of
authorized denominations evidencing the same aggregate denomination, as
requested by the Holder surrendering the same.

         No service charge will be made for any such registration of transfer
or exchange, but the Trustee may require payment of a sum sufficient to cover
any tax or governmental charge payable in connection therewith.





                                       4
<PAGE>   97
         The Trustee, the Certificate Registrar, and any agent of the Trustee
or the Certificate Registrar may treat the person in whose name this
Certificate is registered as the owner hereof for all purposes, and neither the
Trustee, the Certificate Registrar, nor any such agent shall be affected by any
notice to the contrary.

         The obligations and responsibilities created by the Agreement and the
Trust created thereby shall terminate upon the earlier of (i) the maturity or
other liquidation of the last Contract (including pursuant to the Servicer's
option to purchase the Contracts) and the disposition of any amounts received
upon liquidation of any remaining Contracts in the Trust and (ii) (a) the
payment to Certificateholders of all amounts required to be paid to them
pursuant to the Agreement and the disposition of all property held as part of
the Trust, (b) termination of the Surety Bond in accordance with its terms and
the surrender of the Surety Bond to the Insurer for cancellation, (c) the
payment of all amounts owed to the Trustee under the Agreement and (d) the
payment of all amounts owed to the Insurer under the Insurance Agreement. The
Servicer's exercise of its right to purchase all the Contracts and other
property of the Trust will effect early retirement of the Certificates;
however, such right of purchase is exercisable only as of a Distribution Date
as of which the Pool Factor was less than .100000.





                                       5
<PAGE>   98
                                                                       Exhibit C

                              Form of Surety Bond

                                                              DECEMBER ___, 1997

                                                    SURETY BOND NO. ____________


RE:      ONYX ACCEPTANCE GRANTOR TRUST 1997-4
         ______% AUTO LOAN PASS - THROUGH CERTIFICATES,
         SERIES 1997-4 (THE "CERTIFICATES")

INSURED OBLIGATION:       OBLIGATION OF ONYX ACCEPTANCE GRANTOR TRUST 1997-4
                          (THE "TRUST") TO PAY PRINCIPAL AND INTEREST ON THE
                          CERTIFICATES

BENEFICIARY:              BANKERS TRUST COMPANY, AS TRUSTEE OF THE TRUST
                          (TOGETHER WITH ANY SUCCESSOR TRUSTEE DULY APPOINTED
                          AND QUALIFIED UNDER THE POOLING AND SERVICING
                          AGREEMENT AS DEFINED BELOW (THE "TRUSTEE")

         CAPITAL MARKETS ASSURANCE CORPORATION ("CapMAC"), for consideration
received, hereby unconditionally and irrevocably guarantees to the Trustee,
subject only to the terms of this Principal/Interest Surety Bond (the "Surety
Bond"), payment of the Insured Obligation. CapMAC agrees to pay (a) to the
Trustee, in respect of each Distribution Date, an amount equal to the amount,
if any, by which the sum of (i) the Interest Distribution for such Distribution
Date, (ii) the Principal Distribution for such Distribution Date and (iii) the
Servicing Fee for such Distribution Date exceeds the Collection Account Amount
Available for such Distribution Date and (b) on behalf of the Trustee, an
amount equal to any Avoided Payment;

provided, however, that no payment (other than any payment made in respect of
Avoided Payments) under this Surety Bond with respect to any Distribution Date
shall exceed the Surety Bond Amount for such Distribution Date.

         Capitalized terms used herein and not otherwise defined herein shall
have the meanings assigned to them in the Pooling and Servicing Agreement dated
as of December 1, 1997 among Onyx Acceptance Financial Corporation, as seller
(the "Seller"), Onyx Acceptance Corporation, as servicer (the "Servicer") and
the Trustee (the "Pooling and Servicing Agreement").

         As used herein the term "Certificate Balance" means the aggregate
principal balances of the Certificates then outstanding.





<PAGE>   99
         As used herein the term "Insolvency Proceeding" means the
commencement, after the date hereof, of any bankruptcy, insolvency,
readjustment of debt, reorganization, marshalling of assets and liabilities or
similar proceedings by or against the Seller or Servicer, the commencement,
after the date hereof, of any proceedings by or against the Seller or Servicer
for the winding up or liquidation of its affairs, or the consent, after the
date hereof, to the appointment of a trustee, conservator, receiver or
liquidator in any bankruptcy, insolvency, readjustment of debt, reorganization,
marshalling of assets and liabilities or similar proceedings of or relating to
the Seller or Servicer.

         As used herein the term "Servicing Fee" means, as to any Distribution
Date, the fee payable to the Servicer for services rendered during the
Collection Period ending immediately prior to such Distribution Date, which
shall equal with respect to each Contract, the product of (A) the Servicing Fee
Percent and (B) the Scheduled Balance of such Contract as of the close of the
preceding Collection Period.

         As used herein the term "Surety Bond Amount" means, the sum of (a) in
the case of the first Distribution Date, the initial Certificate Balance, or in
the case of any Distribution Date thereafter, the Certificate Balance on the
immediately preceding Distribution Date (after giving effect to the Principal
Distribution on such preceding Distribution Date), (b) the Interest
Distribution payable on such Distribution Date and (c) the Servicing Fee
payable on such Distribution Date.

         Payment of amounts hereunder shall be made in immediately available
funds on the later of (a) 11:00 a.m., New York City time, on the Business Day
immediately preceding a Distribution Date and (b) 11:00 a.m., New York City
time, on the Business Day next succeeding presentation to CapMAC (as
hereinafter provided) of a notice for payment in the form of Exhibit A hereto
("Notice for Payment"), appropriately completed and executed by the Trustee. A
Notice for Payment under this Surety Bond may be presented to CapMAC on any
Business Day following the Servicer Report Date in respect of which the Notice
for Payment is being presented, by (a) delivery of the original Notice for
Payment to CapMAC at its address set forth below, or (b) facsimile transmission
of the original Notice for Payment to CapMAC at its facsimile number set forth
below. If presentation is made by facsimile transmission, the Trustee shall (i)
simultaneously confirm transmission by telephone to CapMAC at its telephone
number set forth below, and (ii) as soon as reasonably practicable, deliver the
original Notice for Payment to CapMAC at its address set forth below. Any
Notice for Payment received by CapMAC after 1:00 p.m., New York City time, on a
Business Day, or on any day that is not a Business Day, will be deemed to be
received by CapMAC at 9:00 a.m., New York City time, on the next succeeding
Business Day.

         Subject to the foregoing, if the payment of any amount with respect to
the Insured Obligation is voided (a "Preference Event") under any applicable
bankruptcy, insolvency, receivership or similar law in an Insolvency
Proceeding, and as a result of such Preference Event, any Certificateholder is
required to return such voided payment, or any portion of such voided payment,
made in respect of any Certificate (an "Avoided Payment"), CapMAC will pay an
amount equal to such Avoided Payment, irrevocably, absolutely and
unconditionally and without





                                       2
<PAGE>   100
the assertion of any defenses to payment, including fraud in inducement or fact
or any other circumstances that would have the effect of discharging a surety
in law or in equity, upon payment of such Certificateholder of such Avoided
Payment and receipt by CapMAC from the Trustee on behalf of such
Certificateholder of (x) a certified copy of a final order of a court
exercising jurisdiction in such Insolvency Proceeding to the effect that the
Certificateholder is required to return any such payment or portion thereof
prior to the Termination Date of this Surety Bond because such payment was
voided under applicable law, with respect to which order the appeal period has
expired without an appeal having been filed (the "Final Order"), (y) an
assignment, substantially in the form attached hereto as Exhibit B, properly
completed and executed by such Certificateholder irrevocably assigning to
CapMAC all rights and claims of such Certificateholder relating to or arising
under such Avoided Payment, and (z) a Notice for Payment in the form of Exhibit
A hereto appropriately completed and executed by the Trustee.

         CapMAC shall make payments due in respect of Avoided Payments prior to
1:00 p.m. New York City time on the second Business Day following CapMAC's
receipt of the documents required under clauses (x) through (z) of the
preceding paragraph. Any such documents received by CapMAC after 3:00 p.m. New
York City time on any Business Day or on any day that is not a Business Day
shall be deemed to have been received by CapMAC prior to 3:00 p.m. on the next
succeeding Business Day. All payments made by CapMAC hereunder on account of
any Avoided Payment shall be made to the Trustee for the benefit of the
Certificateholder entitled to such payment.

         CapMAC hereby waives and agrees not to assert any and all rights to
require the Trustee to make demand on or to proceed against any person, party
or security prior to the Trustee demanding payment under this Surety Bond.

         No defenses, set-offs and counterclaims of any kind available to
CapMAC so as to deny payment of any amount due in respect of this Surety Bond
will be valid and CapMAC hereby waives and agrees not to assert any and all
such defenses, set-offs and counterclaims, including, without limitation, any
such rights acquired by subrogation, assignment or otherwise. Any rights of
subrogation acquired by CapMAC as a result of any payment made under this
Surety Bond shall, in all respects, be subordinate and junior in right of
payment to the prior indefeasible payment in full of all amounts due the
Trustee on account of payments due under the Certificates.

         This Surety Bond is neither transferable nor assignable, in whole or
in part, except to a successor trustee duly appointed and qualified under the
Pooling and Servicing Agreement. All notices, presentations, transmissions,
deliveries and communications made by the Trustee to CapMAC with respect to
this Surety Bond shall specifically refer to the number of this Surety Bond and
shall be made to CapMAC at:





                                       3
<PAGE>   101
         Capital Markets Assurance Corporation
         885 Third Avenue, 14th Floor
         New York, N.Y. 10022
         Attention:       Managing Director, Credit Enhancement
         Telephone: (212) 891-4271
         Facsimile: (212) 755-5462

or such other address, telephone number or facsimile number as CapMAC may
designate to the Trustee in writing from time to time. Each such notice,
presentation, transmission, delivery and communication shall be effective only
upon actual receipt by CapMAC.

         The obligations of CapMAC under this Surety Bond are irrevocable,
primary, absolute and unconditional (except as expressly provided herein) and
neither the failure of the Trustee, the Seller, the Servicer or any other
person to perform any covenant or obligation in favor of CapMAC (or otherwise),
nor the failure or omission to make a demand permitted hereunder, nor the
commencement of any bankruptcy, debtor or other insolvency proceeding by or
against the Trustee, the Seller, the Servicer or any other person shall in any
way affect or limit CapMAC's obligations under this Surety Bond. If a
successful action or proceeding to enforce this Surety Bond is brought by the
Trustee, the Trustee shall be entitled to recover from CapMAC costs and
expenses reasonably incurred, including without limitation reasonable fees and
expenses of counsel.

         There shall be no acceleration payment due under this Surety Bond
unless such acceleration is at the sole option of CapMAC.

         This Surety Bond and the obligations of CapMAC hereunder shall
terminate on the date (the "Termination Date") that is one year and one day
following the earlier of (a) the Final Distribution Date and (b) the date on
which all amounts required to be paid to the Certificateholders have been paid
in full, provided, that, if an Insolvency Proceeding is existing by or against
the Seller or the Servicer during such one year and one day period, then this
Surety Bond and CapMAC's obligations hereunder shall terminate on the date of
the conclusion or dismissal of such Insolvency Proceeding without continuing
jurisdiction by the court in such Insolvency Proceeding, provided, further
that, and notwithstanding anything herein to the contrary, this Surety Bond
shall not terminate prior to the date on which CapMAC has made all payments
required to be made under the terms of this Surety Bond in respect of such
Avoided Payments.

         Upon any payment hereunder, in furtherance and not in limitation of
CapMAC's equitable right of subrogation and CapMAC's rights under the Insurance
Agreement, CapMAC will be subrogated to the rights of the Certificateholder in
respect of which such payment was made to receive any and all amounts due in
respect of the obligations in respect of which CapMAC has made a payment
hereunder.

         All payments made hereunder by CapMAC shall be made with CapMAC's own
funds. The payment by the Trust or CapMAC to the Trustee of any amount
guaranteed by the first





                                       4
<PAGE>   102
paragraph of this Surety Bond, and the payment by CapMAC of any Avoided Payment
after the occurrence of a Preference Event shall constitute "payments" for all
purposes under this Surety Bond.  In no event shall any payment be made under
this Surety Bond on account of (a) the failure of the Trustee to deliver the
proceeds of any such payment to any Certificateholder or (b) the failure of any
such Certificateholder to claim any such proceeds from the Trustee.

         This Surety Bond is not covered by the property/casualty insurance
fund specified in Article Seventy-Six of the New York State insurance law.

         This Surety Bond sets forth in full the undertaking of CapMAC, and
shall not, except with the prior written consent of the Trustee or otherwise in
accordance with the express terms hereof, be modified, altered or affected by
any other agreement or instrument, including any modification or amendment
thereto and may not be canceled or revoked by CapMAC prior to the Termination
Date.

         This Surety Bond shall be returned to CapMAC by the Trustee on the
Termination Date.

         THIS SURETY BOND SHALL BE CONSTRUED, AND THE OBLIGATIONS, RIGHTS AND
REMEDIES OF THE PARTIES HEREUNDER SHALL BE DETERMINED, IN ACCORDANCE WITH THE
LAWS OF THE STATE OF NEW YORK, WITHOUT REGARD TO CONFLICT OF LAWS PRINCIPLES OR
THE APPLICATION OF THE LAWS OF ANY OTHER JURISDICTION.

         IN WITNESS WHEREOF, CapMAC has caused this Surety Bond to be executed
on the date first written above.

                                       CAPITAL MARKETS ASSURANCE CORPORATION



                                       By:_________________________________
                                          Name:
                                          Title:





                                       5
<PAGE>   103
                                                                       Exhibit D

                     Form of Capitalized Interest Agreement



Dated as of December 1, 1997



Onyx Acceptance Financial Corporation
8001 Irvine Center Drive, 6th Floor
Irvine, California  92618



Gentlemen:

         We hereby confirm arrangements made as of the date hereof with you to
be effective upon (i) receipt by us of the enclosed copy of this letter
agreement (the "Capitalized Interest Agreement"), executed by you, and (ii)
execution of the Pooling and Servicing Agreement referred to below and payment
of the purchase price specified thereunder. Capitalized terms used and not
otherwise defined herein shall have the meanings assigned to such terms in the
Pooling and Servicing Agreement dated as of December 1, 1997 (the "Pooling and
Servicing Agreement"), among Onyx Acceptance Corporation, as Servicer (the
"Servicer"), Onyx Acceptance Financial Corporation, as Seller (the "Seller")
and Bankers Trust Company, as Trustee.

         (a)     On the Business Day preceding each Servicer Report Date we
    shall notify the Seller of the Capitalized Interest Amount for such
    Servicer Report Date.

         (b)     In consideration for the Seller entering into the Pooling and
    Servicing Agreement, we agree to make a payment of the Capitalized Interest
    Amount (as determined in accordance with the terms of the Pooling and
    Servicing Agreement) to the Seller, or to the assignee of the Seller
    referred to in Paragraph (i) hereof, on the Business Day prior to each
    Servicer Report Date.

         (c)     All payments pursuant hereto shall be made by federal wire
    transfer (same day) funds or in immediately available funds, to such
    account as the Seller, or the assignee of the Seller referred to in
    Paragraph (i) hereof, may designate in writing to Onyx, prior to the
    relevant Servicer Report Date.





<PAGE>   104
         (d)     In order to secure our obligations to pay the Capitalized
    Interest Amount on each Servicer Report Date, we hereby agree on the
    Closing Date, to deposit the o into the Capitalized Interest Account.

         (e)     On each Subsequent Closing Date, upon satisfaction of the
    conditions specified in Section 2.1(h) of the Pooling and Servicing
    Agreement, an amount will be released to us from the Capitalized Interest
    Account so that the amount remaining in such Account after such release
    will be the maximum Capitalized Interest Amount which could become owing
    during the remainder of the Funding Period assuming that no additional
    Subsequent Contracts are conveyed to the Trust.

         (f)     Any amounts remaining on deposit in the Capitalized Interest
    Account after the Mandatory Partial Payment of that portion of the
    Prefunded Amount not used to purchase Subsequent Contracts will be released
    to us on the date such Mandatory Partial Prepayment to withdraw from the
    Capitalized Interest Account.

         (g)     On termination of the Pooling and Servicing Agreement pursuant
    to Sections 10.1 and 10.2 thereof, we shall be entitled to withdraw from
    the Prefunding Account all amounts on deposit therein.

         (h)     Our agreements set forth in this Capitalized Interest
    Agreement are our primary obligations and such obligations are irrevocable,
    absolute and unconditional, shall not be subject to any counterclaim,
    setoff or defense and shall remain in full force and effect without regard
    to, and shall not be released, discharged or in any way affected by, any
    circumstances or condition whatsoever.

         (i)     Pursuant to the Pooling and Servicing Agreement, the Seller
    will sell, transfer, assign and convey its interest in this Capitalized
    Interest Agreement to the Onyx Acceptance Grantor Trust, 1997-4 (the
    "Trust"), and we hereby acknowledge and consent to such sale, transfer,
    assignment and conveyance. In addition, the Seller hereby agrees, for the
    benefit of the Trust, that following such sale, transfer, assignment and
    conveyance, this Capitalized Interest Agreement shall not be amended,
    modified or terminated without the consent of Bankers Trust Company, as
    trustee for the Trust, and Capital Markets Assurance Corporation.

         (j)     This Capitalized Interest Agreement will be governed by and
    construed in accordance with the internal laws of the State of California.

         (k)     Except as otherwise provided herein, all notices pursuant to
    this Capitalized Interest Agreement shall be in writing and shall be
    effective upon receipt thereof. All notices shall be directed as set forth
    below, or to such other address or to the attention of such other person as
    the relevant party shall have designated for such purpose in a written
    notice.





                                       2
<PAGE>   105
                 Onyx Acceptance Financial Corporation
                 8001 Irvine Center Drive - 6th Floor
                 Irvine, California  92618
                 Attention:  Regan E. Kelly

                 The Servicer:

                 Onyx Acceptance Corporation
                 8001 Irvine Center Drive, 5th Floor
                 Irvine, California   92618
                 Attention:  Don P. Duffy

         (l)     The Capitalized Interest Agreement may be executed in one or
    more counterparts and by the different parties hereto on separate
    counterparts, all of which shall be deemed to be one and the same document.

         If the foregoing satisfactorily sets forth the terms and conditions of
our agreement, please indicate your acceptance thereof by signing in the space
provided below and returning to us the enclosed duplicate original of this
letter.

                                       Very truly yours,

                                       ONYX ACCEPTANCE CORPORATION



                                       By: ________________________________
                                           Name:
                                           Title:

Agreed and accepted as of December 1, 1997.

ONYX ACCEPTANCE FINANCIAL CORPORATION



By:  _______________________________
     Name:
     Title:





                                       3
<PAGE>   106
                                                                     Exhibit E-1

                          FORM OF TRANSFER CERTIFICATE

         Transfer Certificate, dated as of __________, 1997, delivered pursuant
to Section 2.1(c) of the Pooling and Servicing Agreement dated as of December
1, 1996 (the "Agreement") among Onyx Acceptance Corporation, a California
corporation (the "Servicer"), Onyx Acceptance Financial Corporation, a Delaware
corporation (the "Seller"), and Bankers Trust Company, a New York banking
corporation, as trustee (the "Trustee"). Terms used in this Transfer
Certificate which are not defined herein have meanings assigned to such terms
in the Agreement.

         I, ______________________________, the ____________________ of the
Seller, do hereby certify:

         1.      Attached hereto is a list of Subsequent Contracts set forth by
account number and Outstanding Principal Balance with an aggregate Outstanding
Principal Balance of $__________, all of which Contract Documents relating
thereto have been delivered to the Trustee as of the date hereof.

         2.      The aggregate Outstanding Principal Balance of all Subsequent
Contracts as of their respective Subsequent Transfer Dates delivered to the
Trustee pursuant to this Transfer Certificate and each Transfer Certificate
delivered up to the date hereof and after the Closing Date is $_______________,
which amount is less than or equal to the Original Prefunded Amount.

         3.      Each of the conditions set forth in Section 2.1(c) of the
Agreement has been met as of this Subsequent Transfer Date.

         4.      The representations and warranties set forth in Section 2.2(a)
and (d) of the Agreement with respect to the Seller and the Subsequent
Contracts delivered hereunder are true and correct as of this Subsequent
Transfer Date.

         Please transfer immediately available funds by 4:00 p.m. New York time
today in the amount of $______________ to Seller in accordance with the wire
instructions below.





<PAGE>   107
         IN WITNESS WHEREOF, the undersigned has caused this Transfer
Certificate to be delivered to the Trustee as of the date first above written.

                                       ONYX ACCEPTANCE FINANCIAL CORPORATION


                                       By: ______________________________
                                           Name:
                                           Office:

Wiring Instructions:

         Beneficiary:

         OAFC Bank:               Wells Fargo Bank, N.A.,
                                  Newport Beach, CA

         ABA#:                    ______________
         Bank Acct.#:             ______________
         $ Amount:                ______________
         Notation:                Proceeds from 1997-4 Grantor Trust Prefunding
                                  Account





                                       2
<PAGE>   108
                                                                     Exhibit E-2

                  FORM OF SUBSEQUENT CLOSING DATE CERTIFICATE

         Subsequent Closing Date Certificate, dated as of __________, 1997,
delivered pursuant to Section 2.1(h) of the Pooling and Servicing Agreement
dated as of December 1, 1997 (the "Agreement") among Onyx Acceptance
Corporation, a California corporation ("Servicer"), Onyx Acceptance Financial
Corporation, a Delaware corporation (the "Seller"), and Bankers Trust Company,
a New York banking corporation, as trustee (the "Trustee"). Terms used in this
Subsequent Closing Date Certificate which are not defined herein have meanings
assigned to such terms in the Agreement.

         I, ____________________, the _______________ of the Seller, do hereby
certify:

         1.      All Contract Documents relating to each Subsequent Contract
have been delivered to the Trustee on or before the date hereof.

         2.      Attached hereto as Schedule I is a schedule setting forth the
Contract Number, date of origination, Maturity Date, Outstanding Principal
Balance and APR for each such Subsequent Contract, and additionally for Rule of
78's Contracts, the Scheduled Balance for each such contract on its respective
Due Dates and the Recomputed Yield. The Recomputed Yield and Scheduled Balance
for each such Rule of 78's Subsequent Contract was calculated in accordance
with the procedures set forth in the Agreement. Such Schedule I is a list of
Subsequent Contracts referred to in the definition of "Schedule of Contracts"
in the Agreement, and is deemed incorporated into and made a part thereof.

         3.      The aggregate Outstanding Principal Balance of all Subsequent
Contracts as of their respective Subsequent Transfer Dates delivered to the
Trustee pursuant to each Subsequent Transfer Certificate delivered on and after
the Closing Date up to the date hereof is $______________, which amount is less
than or equal to the Original Prefunded Amount.

         4.      The amount equal to the Additional Capitalized Interest Amount
with respect to the Subsequent Contracts conveyed to the Trust and delivered to
the Trustee on each Subsequent Transfer Date has been deposited to the
Capitalized Interest Account.

         5.      Each of the conditions set forth in Section 2.1(h) of the
Agreement has been met as of this Subsequent Closing Date and each of the
conditions set forth in Section 2.1(c) of the Agreement has been met as of each
Subsequent Transfer Date from and including the last Subsequent Closing Date
(or the Closing Date in the case of the first Subsequent Closing Date).

         6.      The representations and warranties set forth in Section 2.2(a)
and (d) of the Agreement with respect to the Seller and the Subsequent
Contracts delivered hereunder are true and correct as of this Subsequent
Closing Date.





<PAGE>   109
         IN WITNESS WHEREOF, the undersigned has caused this Subsequent Closing
Date Certificate to be delivered to the Trustee as of the date first above
written.

                                       ONYX ACCEPTANCE FINANCIAL CORPORATION


                                       By:  _________________________________
                                            Name:
                                            Office:





                                       2
<PAGE>   110
                                                                      Schedule I

                             Schedule of Contracts

                             (Subsequent Contracts)

                                   (attached)





<PAGE>   111
                                                                      Schedule I

                             Schedule of Contracts

                              (Initial Contracts)

                                   (attached)






<PAGE>   1
                                                                     EXHIBIT 5.1


                                December 4, 1997


Onyx Acceptance Financial Corporation
   on behalf of
Onyx Acceptance Grantor Trust 1997-4
c/o  Onyx Acceptance Financial Corporation
     8001 Irvine Center Drive, Sixth Floor
     Irvine, California 92618

            Re:  Onyx Acceptance Grantor Trust 1997-4
                 Registration Statement on Form S-1
                 Registration No. 333-40089

Ladies and Gentlemen:

            We have acted as counsel for Onyx Acceptance Grantor Trust 1997-4
(the "Trust"), in connection with the proposed issuance by the Trust of its
Pass-Through Certificates (the "Pass- Through Certificates") to be issued
pursuant to a Pooling and Servicing Agreement, among Onyx Acceptance Financial
Corporation, as seller (the "Seller"), Onyx Acceptance Corporation, as servicer
(the "Servicer") and Bankers Trust Company, in its capacity as the trustee of
the Trust (the "Trustee"). The Pooling and Servicing Agreement, in the form
filed with the Securities and Exchange Commission on December 4, 1997 as an
exhibit to Amendment No. 1 to the above-referenced registration statement (as so
amended, the "Registration Statement") on Form S-1 (File No. 333-40089) under
the Securities Act of 1933, as amended (the "1933 Act"), is herein referred to
as the "Agreement."

            We have examined originals or copies, certified or otherwise
identified to our satisfaction, of the form of Agreement and the form of
Pass-Through Certificates included therein, and such other documents, records,
certificates of the Trust and public officials and other instruments as we have
deemed necessary for the purposes of rendering this opinion. In addition, we
have assumed that the Agreement as completed for the Pass-Through Certificates
will be duly executed and delivered by each of the parties thereto; that the
Pass-Through Certificates as completed will be duly executed and delivered
substantially in the forms contemplated by the Agreement; and that the
Pass-Through Certificates will be sold as described in the Registration
Statement.



<PAGE>   2

            Based upon the foregoing and subject to the limitations and
qualifications set forth below, we are of the opinion that the Pass-Through
Certificates are in due and proper form and, assuming the due authorization,
execution and delivery of the Agreement by the Seller, the Servicer and the
Trustee and the due authorization of the Pass-Through Certificates by all
necessary action on the part of the Trustee, when the Pass-Through Certificates
have been validly executed, authenticated and issued in accordance with the
Agreement and delivered against payment therefor, the Pass-Through Certificates
will be validly issued and outstanding, fully paid and non-assessable, and
entitled to the benefits of the Agreement in accordance with their terms,
subject to bankruptcy, insolvency, reorganization, moratorium or other similar
laws relating to or affecting creditors' rights generally (including, without
limitations, fraudulent conveyances laws), and general principles of equity,
including, without limitation, concepts of materiality, reasonableness, good
faith and fair dealing and the possible unavailability of specific performance
or injunctive relief, regardless of whether considered in a proceeding in equity
or at law.

            The opinion expressed above is limited to the federal laws of the
United States of America and the laws of the States of California and New York.
We express no opinion herein as to the laws of any other jurisdiction and no
opinion regarding the statutes, administrative decisions, rules, regulations or
requirements of any county, municipality, subdivision or local authority of any
jurisdiction. 

            We consent to the use and filing of this opinion as Exhibit 5.1 to
the Registration Statement and to the reference to our firm under the caption
"Legal Matters" in the Prospectus contained therein. In giving such consent we
do not imply or admit that we are within the category of persons whose consent
is required under Section 7 of the 1933 Act or the rules and regulations of the
Securities and Exchange Commission thereunder.


                                   Very truly yours,

                                   /s/ O'Melveny & Myers LLP


<PAGE>   1
                                                                     EXHIBIT 8.1


                                December 3, 1997


Onyx Acceptance Financial Corporation
8001 Irvine Center Drive, Sixth Floor
Irvine, California 92618


            Re:  Onyx Acceptance Grantor Trust 1997-4
                 Auto Loan Pass-Through Certificates
                 Registration Statement on Form S-1
                 ----------------------------------------

Ladies and Gentlemen:

            We have acted as special tax counsel to Onyx Acceptance Financial
corporation (the "Seller") in connection with the registration under the
Securities Act of 1933, as amended (the "Act"), of Auto Loan Pass-Through
Certificates (the "Certificates"), and the related preparation and filing of a
Registration Statement on Form S-1 (the "Registration Statement"). The
Certificates will be issued pursuant to a Pooling and Servicing Agreement, among
the Seller, Onyx Acceptance Corporation (the "Servicer") and Bankers Trust
Company (the "Trustee"), substantially in the form filed as Exhibit 4.1 to the
Registration Statement (the "Pooling and Servicing Agreement").

            In connection with rendering this opinion letter, we have examined
the Pooling and Servicing Agreement, the Registration Statement and such records
and other documents as we have deemed necessary. As to matters of fact, we have
examined and relied upon representations or certifications of officers of the
Registrant or public officials. We have assumed the authenticity of all
documents submitted to us as originals, the genuineness of all signatures, the
legal capacity of natural persons and the conformity to the originals of all
documents. We have assumed that all parties, other than the Registrant, had the
corporate power and authority to enter into and perform all obligations
thereunder, and, as to such parties, we also have assumed the enforceability of
such documents.

            In rendering this opinion letter, we express no opinion as to the
laws of any jurisdiction other than the United States Internal Revenue Code of
1986, as amended (the "Code"), nor do we express any opinion, either implicitly
or otherwise, or any issue not expressly addressed below. In rendering this
opinion letter, we have not passed upon and do not pass upon the application of
"doing business" or the securities laws of any jurisdiction.

<PAGE>   2
Page 2 -- Onyx Acceptance Financial Corporation -- December 3, 1997

            Based on the foregoing, we are of the opinion that the description
of the federal income tax consequences appearing under the heading "Certain
Federal Income Tax Consequences" in the prospectus contained in the Registration
Statement, while not purporting to discuss all possible Federal income tax
consequences of an investment in the Certificates, is accurate with respect to
those tax consequences which are discussed.

            The opinion set forth above is based on relevant provisions of the
Code, Treasury Regulations thereunder, and interpretations of the foregoing as
expressed in court decisions, administrative determination, and legislative
history as of the date hereof. These provisions and interpretations are subject
to change, which may or may not be retroactive in effect, that might result in
modifications of our opinion.

            We hereby consent to the filing of this opinion letter as an Exhibit
to the Registration Statement, and to the use of our name in the prospectus and
prospectus supplement included in the Registration Statement under the heading
"Certain Federal Income Tax Consequences," without admitting that we are
"experts" within the meaning of the Act, and the rules and regulations
thereunder, with respect to any part of the Registration Statement, including
this Exhibit.


                                        Respectfully submitted,

                                        /s/ O'MELVENY & MYERS LLP
                                        -------------------------------
                                            O'Melveny & Myers LLP


<PAGE>   1

                                                                EXHIBIT 23.3


              CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS


The Board of Directors
Capital Markets Assurance Corporation:

We consent to the use of our report included herein and to the reference to our
firm under the heading "Experts" in the Onyx Acceptance Grantor Trust 1997-4
Form S-1 filed in connection with the registration of Auto Loan Pass-Through
Certificates, Series 1997-4.


                                        KPMG PEAT MARWICK LLP


New York, New York
December 3, 1997


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