Exhibit 99.6

                                 August 8, 2002

Deutsche Bank AG, New York branch
31 West 52/nd/ Street
New York, New York 10019

               RE: Confirmation of Primary Swap Relating to the Class A-2b Notes

Dear Ladies and Gentlemen:

         The purpose of this letter agreement is to confirm the terms and
conditions of the Swap Transaction (the "Primary Swap") entered into between
Deutsche Bank AG New York branch (the "Counterparty"), and Capital Auto
Receivables Asset Trust 2002-3 (the "Trust") as of the Trade Date listed below
(the "Transaction"). This letter constitutes a "Confirmation" as referred to in
the Primary ISDA Agreement specified below.

1.       The definitions and provisions contained in the 2000 ISDA Definitions
         (the "Definitions"), as published by the International Swaps and
         Derivatives Association, Inc. ("ISDA"), are incorporated into this
         Confirmation. In the event of any inconsistency between those
         definitions and provisions and this Confirmation, this Confirmation
         will govern. The parties agree that this transaction is a Transaction
         under the ISDA Master Agreement of the parties, dated as of August 8,
         2002. The agreement is comprised of the printed form of such agreement
         as published by ISDA, as supplemented and modified by a Schedule (the
         "Primary ISDA Agreement").

         This Confirmation constitutes a binding agreement between you and us
         and will supplement, form a part of, and be subject to the Primary ISDA
         Agreement described above as amended and supplemented from time to
         time.

         The Counterparty and the Trust acknowledge that this Transaction
         relates to the Class A-2b Floating Rate Asset Backed Notes (the
         "Reference Notes") issued by the Trust for value pursuant to and
         subject to the Indenture.

         Capitalized terms used and not otherwise defined herein, in the Primary
         ISDA Agreement or in the Definitions shall have the meanings assigned
         to them in Exhibit A or Exhibit B hereto, as applicable.

         All references to "dollars" or to "$" shall be references to amounts in
         United States Dollars.

2.       The terms of the particular Transaction to which this Confirmation
         relates are as follows:

         Type of Transaction: Interest Rate Swap

         Notional Amount: $344,250,000.00, with respect to the initial
         Calculation Period. The Notional Amount with respect to each
         Calculation Period thereafter shall be equal to the Reference Note
         Balance as of the close of business on the Distribution Date at the
         beginning of the relevant Calculation Period (as set forth in the
         Calculation Statement (defined below) delivered by the Trust to the
         Counterparty on or prior to the Determination Date relating to such
         Calculation Period pursuant to Section 3 below).

         Trade Date: July 30, 2002

         Effective Date: August 8, 2002

         Termination Date: The earlier of the close of business on (i) September
         15, 2005 and (ii) the Fixed Rate Payer Payment Date on which the
         Notional Amount is reduced to zero.

         Fixed Amounts:



                  Fixed Rate Payer: The Trust

                  Fixed Rate Payer Period End Dates: The 15th calendar day of
                  each month, commencing September 15, 2002 to and including
                  September 15, 2005, in each case, subject to adjustment in
                  accordance with the Following Business Day Convention.

                  Fixed Rate Payer Payment Date: One Business Day prior to each
                  Distribution Date.

                  Fixed Rate: 3.025%.

                  Fixed Rate Day Count Fraction: 30/360.

         Floating Amounts:

                  Floating Rate Payer: The Counterparty.

                  Floating Rate Payer Period End Dates: Each Fixed Rate Payer
                  Period End Date.

                  Floating Rate Payer Payment Dates: Each Fixed Rate Payer
                  Payment Date.

                  Reset Dates: Each Distribution Date.

                  Floating Rate: LIBOR (as defined in Exhibit A hereto).

                  Spread: Plus 7 Basis Points.

                  Floating Rate Day Count Fraction: Actual/360.

                  Compounding: Inapplicable.

         Business Days for Payment: New York (New York), Detroit (Michigan) and
         Chicago (Illinois).

         Calculation Agent: The Trust, or General Motors Acceptance Corporation,
         as agent for and on behalf of the Trust.

         Default Rate: For any United States Dollar payments, the rate
         determined under the option entitled "USD Federal Funds - H.15" plus 1%
         using daily Reset Dates. The Default Rate will be applied on the basis
         of Compounding as if the overdue amount were a Notional Amount and
         using daily Compounding Dates, and interest will accrue and be payable
         before as well as after judgment.

3.       Calculations and Notifications: On or before each Determination Date,
         the Calculation Agent shall determine the Fixed Amount due to the
         Counterparty on the next succeeding Fixed Rate Payer Payment Date and
         the Floating Amount due to the Trust on the next succeeding Floating
         Rate Payer Payment Date and the Calculation Agent shall notify the
         Counterparty in writing of both (i) the Floating Rate and (ii) the
         amount of such payment.

         In addition, on each Determination Date the Trust shall deliver to the
         Counterparty (by facsimile with hard copy to follow) a statement (the
         "Calculation Statement") setting forth with respect to the close of
         business on the immediately preceding Distribution Date the Reference
         Note Balance as of such Distribution Date.\

         The Trust will give the Counterparty prompt written notice of any
         Default under the Indenture.

4.       Credit Downgrade:

                                       2



         (a)      In the event that the Joint Probability is reduced below AA-
                  in the case of S&P or Aa3, in the case of Moody's, the
                  Offsetting Counterparty shall promptly notify the Trust (and
                  any permitted assignee or transferee of the Trust) and the
                  Counterparty of such event and (unless, within thirty (30)
                  days after such reduction, the applicable Rating Agency has
                  reconfirmed the ratings of the Reference Notes and the Other
                  Securities that were in effect immediately prior to such
                  reduction) the Counterparty shall within thirty (30) days of
                  receipt of notice of such reduction, with the prior written
                  confirmation of the applicable Rating Agency that such
                  arrangement will not result in the reduction of the rating of
                  any of the Reference Notes or the Other Securities existing
                  immediately prior to the reduction of the applicable Joint
                  Probability, either:

                  (i)     obtain a substitute swap provider (the "Substitute
                          Swap Provider") acceptable to the Trust (such
                          acceptance not to be unreasonably withheld) and
                          replace this Transaction with a swap transaction on
                          substantially similar terms or with such other
                          amendments as consented to in writing by the Trust
                          (which consent shall not be unreasonably withheld),
                          provided such replacement would result in an S&P Joint
                          Probability of at least AA- and a Moody's Joint
                          Probability of at least Aa3; or

                  (ii)    enter into an ISDA Credit Support Annex with the Trust
                          mutually acceptable to the Trust and the Counterparty;
                          or

                  (iii)   enter into such other credit support arrangements to
                          assure performance by the Counterparty of its
                          obligations under this Transaction.

         (b)      At any time within thirty (30) days of receipt of notice of
                  the reduction of the applicable Joint Probability, the
                  Counterparty may provide the Trust and the Offsetting
                  Counterparty a written request that (a) the Trust and the
                  Offsetting Counterparty terminate the Fallback Swap
                  Transaction and (b) the Trust enter into a replacement swap
                  transaction (the "Replacement Fallback Swap Transaction") with
                  another party identified (by the Counterparty at its own
                  expense) in the written request (the "Replacement Offsetting
                  Counterparty") on terms substantially the same as the Fallback
                  Swap Transaction; provided that the Replacement Fallback Swap
                  Transaction and the Replacement Offsetting Counterparty would
                  result in an S&P Joint Probability Rating of at least AA- and
                  a Moody's Joint Probability of a least Aa3. To the extent the
                  Trust and Offsetting Counterparty, in their sole and absolute
                  discretion, terminate the Fallback Swap Transaction and the
                  Trust, in its sole and absolute discretion, enters into the
                  Replacement Fallback Swap Transaction with the Fallback
                  Offsetting Counterparty, in each case, within thirty (30) days
                  of receipt of notice of the reduction of the Joint
                  Probability, the Counterparty will have no further obligations
                  under paragraph (a) above.

         (c)      Notwithstanding paragraphs (a) and (b), in the event that the
                  Joint Probability is reduced below A- in the case of S&P, or
                  A3, in the case of Moody's, the Offsetting Counterparty shall
                  promptly notify the Trust (and any permitted assignee or
                  transferee of the Trust) and the Counterparty of such event
                  and (unless, within thirty (30) days after such reduction the
                  applicable Rating Agency has reconfirmed the ratings of the
                  Reference Notes and the Other Securities that were in effect
                  immediately prior to such reduction) the Counterparty shall
                  within thirty (30) days of receipt of notice of such
                  reduction, with the prior written confirmation of the
                  applicable Rating Agency that such arrangement will not result
                  in the reduction of the rating of any of the Reference Notes
                  or the Other Securities existing immediately prior to the
                  reduction of the applicable Joint Probability as a direct
                  result of the reduction of such Joint Probability, obtain a
                  Substitute Swap Provider acceptable to the Trust (such
                  acceptance not to be unreasonably withheld) and replace this
                  Transaction with a swap transaction on substantially similar
                  terms or with such other amendments as consented to in writing
                  by the Trust (which consent shall not be unreasonably
                  withheld); provided such replacement would result in an S&P
                  Joint Probability of at least AA- or a Moody's Joint
                  Probability of Aa3.

                                       3



         (d)      Upon any replacement of this Transaction with a swap
                  transaction with a Substitute Swap Provider, who thenceforth
                  shall be the "Counterparty" hereunder, this Transaction shall
                  terminate without any payment by either party hereto and any
                  and all collateral posted by the Counterparty shall be
                  returned to it within three (3) Business Days and any other
                  form of collateral arrangement (including letters of credit,
                  surety bond or other guarantee) provided by or on behalf of
                  the Counterparty shall terminate.

         (e)      In the event that the Counterparty fails to satisfy its
                  obligations set forth above in this Section 4, the Trust or
                  any permitted assignee or transferee of the Trust shall have
                  the option, exercisable in its discretion and with regard to
                  the interests of the Noteholders, within ten (10) Business
                  Days following the date of expiry of the thirty (30) day
                  period after receipt of notice of the reduction (unless,
                  within thirty (30) days of receipt of notice of such
                  reduction, the applicable Rating Agency has reconfirmed the
                  rating of the Reference Notes that was in effect immediately
                  prior to such reduction), to designate (in writing) an Early
                  Termination Date on the basis that such failure shall be
                  treated as a Termination Event with the Counterparty as the
                  Affected Party. For the avoidance of doubt, the Counterparty
                  and the Trust acknowledge and agree that any such failure
                  shall not constitute an Event of Default.

5.       Account Details:

                  Account Details:

                           Payments to Fixed Rate Payer:

                           Bank One, National Association
                           ABA No.: 071000013
                           A/C: No.: 10-43256 further credit to
                           CARAT 2002-3 Collection Account No. 2600076000
                           Attn: Keith Richardson

                           Payments to Floating Rate Payer:

                           Deutsche Bank AG New York branch
                           ABA: 026-003-780
                           Account Number: 100440170004
                           Account Name: DBNY
                           Reference: CARAT 2002-3
                           Ref. No. N187419N
                           Attn: Eric Lip

6.       Limited Recourse: Notwithstanding anything to the contrary contained
         herein but without limiting the Counterparty's rights under Section
         5(a)(i) of the Primary ISDA Agreement, all of the obligations of the
         Trust shall be payable by the Trust only at the times and to the extent
         of funds available therefor under the Trust Sale and Servicing
         Agreement and, to the extent such funds are not available or are
         insufficient for the payment thereof, shall not constitute a claim
         against the Trust to the extent of such unavailability or insufficiency
         until such time as, and then to the extent that, the Trust has assets
         sufficient to pay such prior deficiency. This paragraph shall survive
         the termination of this Agreement but in all cases shall expire one
         year and one day after the final payment with respect to all notes and
         certificates issued by the Trust.

7.       Limitation of Liability: It is expressly understood and agreed by the
         parties hereto that (a) this Agreement is executed and delivered by
         Deutsche Bank Trust Company Delaware, not individually or personally
         but solely as Owner Trustee of the Trust in the exercise of the powers
         and authority conferred and vested in it, (b) each of the
         representations, undertakings and agreements herein made on the part of
         the Trust is made and intended not as personal representations,
         undertakings and agreements by Deutsche Bank Trust Company Delaware but
         is made and intended for the purpose for binding only the Trust, (c)
         nothing herein contained shall be construed as creating any liability
         on Deutsche Bank Trust Company Delaware,

                                       4



         individually or personally, to perform any covenant either expressed or
         implied contained herein, all such liability, if any, being expressly
         waived by the parties hereto and by any Person claiming by, through or
         under the parties hereto and (d) under no circumstances shall Deutsche
         Bank Trust Company Delaware be personally liable for the payment of any
         indebtedness or expenses of the Trust or be liable for the breach or
         failure of any obligation, representation, warranty or covenant made or
         undertaken by the Trust under this Agreement or any other related
         documents.

8.       To the extent that a capitalized term in this Transaction is defined by
         reference to a related definition contained in any Trust Document, for
         purposes of this Transaction only, such capitalized term shall be
         deemed to be amended only if the amendment of the term in a Trust
         Document relating to such capitalized term occurs with the prior
         written consent of the Counterparty.

9.       Acknowledgment and Ratification: The Trust acknowledges and agrees that
         this Confirmation is the legal, valid and binding obligation of the
         Trust, enforceable in accordance with its terms, not withstanding that
         the Trade Date precedes the date upon which the Trust was formed, and
         the Trust hereby ratifies and confirms all actions taken on its behalf
         in respect of this Confirmation prior to the date hereof.

                                     * * * *

                                       5



         Please confirm that the foregoing correctly sets forth the terms of our
agreement by executing the copy of this Confirmation enclosed for that purpose
and returning it to us.

                                     CAPITAL AUTO RECEIVABLES ASSET TRUST 2002-3

                                     By:    DEUTSCHE BANK TRUST COMPANY
                                            DELAWARE, not in its individual
                                            capacity but solely as Owner Trustee


                                     By:    /s/ Man Wing Li
                                            ------------------------------------
                                     Name:  Man Wing Li
                                     Title: Attorney-In-Fact

Accepted and confirmed as of the
date first written above

DEUTSCHE BANK AG NEW YORK BRANCH

By:   __________________________
Name: __________________________
Its:  __________________________


By:   __________________________
Name: __________________________
Its:  __________________________

Accepted and confirmed as of the
date first written above

GENERAL MOTORS ACCEPTANCE
CORPORATION, solely as
Calculation Agent

By:   /s/ R.L. Straub
      --------------------------
Name: R.L. Straub
Its:  Manager - Securitization
      --------------------------



                                    EXHIBIT A

The following terms shall have the following meanings in this Confirmation:

         "Determination Date": the tenth (10th) day of each calendar month, or
if such tenth (10th) day is not a Business Day, the next succeeding Business
Day.

         "Distribution Date": the fifteenth (15th) day of each succeeding
calendar month following the Effective Date or, if such fifteenth (15th) day is
not a Business Day, the next such succeeding Business Day, commencing September
16, 2002.

         "Indenture": the Indenture, dated as August 8, 2002, between the Trust
and the Indenture Trustee, as amended and supplemented from time to time in
accordance with its terms.

         "Indenture Trustee": Bank One, National Association, not in its
individual capacity but solely as trustee under the Indenture, or any successor
trustee under the Indenture.

         "LIBOR": with respect to each Floating Rate Payer Payment Date, the
rate for deposits in U.S. Dollars for a period of one month which appears on the
Telerate Service Page 3750 as of 11:00 a.m., London time, on the day that is two
LIBOR Business Days prior to the Distribution Date (or, in the case of the
initial Floating Rate Payer Payment Date, two LIBOR Business Days prior to
Closing Date) preceding such Floating Rate Payer Payment Date. If the rate does
not appear on that date on the Telerate Service Page 3750 (or any other page as
may replace that page on that service, or if that service is no longer offered,
any other service for displaying LIBOR or comparable rates as may be selected by
the Indenture Trustee after consultation with the Seller), then LIBOR will be
the Reference Bank Rate.

         "LIBOR Business Day": any day other than a Saturday, Sunday or any
other day on which banks in London are required or authorized to be closed.

         "Other Securities": Class A-1, Class A-2a, Class A-3 and Class A-4
Notes and Certificates issued by the Trust.

         "Reference Bank Rate": for any Floating Rate Payer Payment Date, the
per annum rate determined on the basis of the rates at which deposits in U.S.
Dollars are offered by the reference banks (which will be four major banks that
are engaged in transactions in the London interbank market, selected by the
Calculation Agent) as of 11:00 a.m., London time, on the day that is two LIBOR
Business Days prior to the Distribution Date preceding such Floating Rate Payer
Payment Date to prime banks in the London interbank market for a period of one
month, in amounts approximately equal to the principal amount of the Reference
Notes then outstanding. The Calculation Agent will request the principal London
office of each of the reference banks to provide a quotation of its rate. If at
least two quotations are provided, the rate will be the arithmetic mean of the
quotations, rounded upwards to the nearest one-sixteenth of one percent. If on
that date fewer than two quotations are provided as requested, the rate will be
the arithmetic mean, rounded upwards to the nearest one-sixteenth of one
percent, of the rates quoted by one or more major banks in New York City,
selected by the Calculation Agent, as of 11:00 a.m., New York City time, on that
date to leading European banks for United States dollar deposits for a period of
one month in amounts approximately equal to the principal amount of the
Reference Notes then outstanding. If no quotation can be obtained, then LIBOR
will be the rate for the prior Floating Rate Payer Payment Date.

         "Reference Note Balance": as of the Effective Date, $1,162,000,000.00
and, with respect to each Distribution Date thereafter, the aggregate principal
balance of any and all outstanding Reference Notes.

         "Seller": Capital Auto Receivables, Inc., which has executed the Trust
Sale and Servicing Agreement as the Seller, or its successor in interest
pursuant to Section 3.03 of the Trust Sale and Servicing Agreement.

                                      A-1



         "Trust Sale and Servicing Agreement": the Trust Sale and Servicing
Agreement, dated as August 8, 2002, between the Seller, General Motors
Acceptance Corporation, as Servicer, and the Trust, as amended, modified and
supplemented from time to time in accordance with its terms.

                                       2



                                    EXHIBIT B

                                    EXHIBIT B

         "Contingent Party": the Offsetting Counterparty or the Replacement
Offsetting Counterparty, as applicable.

         "Fallback Swap Transaction": the swap transaction entered into by the
Trust and the Offsetting Counterparty relating to the Class A-2b Notes.

         "Joint Probability": the Moody's Joint Probability or the S&P Joint
Probability, as applicable.

         "Moody's": Moody's Investors Service, Inc. and its successors.

         "Moody's Joint Probability" means the joint probability determined by
Moody's of the long-term likelihood of payment under this interest rate swap
determined by locating the intersection of the long-term unsecured debt ratings
of the Primary Party and the Contingent Party on the table below headed "Implied
Joint Support Rating for Medium Correlation Case" (except that, for any pairing
other than the initial Primary Party with the initial Contingent Party, the
table below to be used shall be the table headed "Implied Joint Support Rating
for Low Correlation Case" or the table headed "Implied Joint Support Rating for
High Correlation Case" if so specified by Moody's within five days after Moody's
has received notice of a potential pairing of a Primary Party with a Contingent
Party).

             IMPLIED JOINT SUPPORT RATING FOR HIGH CORRELATION CASE



         Rating of the Higher Rated Party

     -------------------------------------------------------------------------------------------------------------
                Aaa   Aa1   Aa2   Aa3   A1    A2    A3   Baa1   Baa2  Baa3  Ba1   Ba2   Ba3   B1    B2    B3   Caa
     -------------------------------------------------------------------------------------------------------------
                                                            
     Aaa        Aaa
     -------------------------------------------------------------------------------------------------------------
     Aa1        Aaa   Aaa
     -------------------------------------------------------------------------------------------------------------
     Aa2        Aaa   Aaa   Aa1
     -------------------------------------------------------------------------------------------------------------
     Aa3        Aaa   Aaa   Aa1   Aa2
     -------------------------------------------------------------------------------------------------------------
     A1         Aaa   Aaa   Aa1   Aa2   Aa3
     -------------------------------------------------------------------------------------------------------------
     A2         Aaa   Aaa   Aa1   Aa2   Aa3   A1
     -------------------------------------------------------------------------------------------------------------
     A3         Aaa   Aaa   Aa1   Aa2   Aa3   A1    A2
     -------------------------------------------------------------------------------------------------------------
(a)  Baa1       Aaa   Aaa   Aa1   Aa2   Aa3   A1    A2   A3
     -------------------------------------------------------------------------------------------------------------
     Baa2       Aaa   Aaa   Aa1   Aa2   Aa3   A1    A2   A3     Baa1
     -------------------------------------------------------------------------------------------------------------
     Baa3       Aaa   Aaa   Aa1   Aa2   Aa3   A1    A2   A3     Baa1  Baa2
     -------------------------------------------------------------------------------------------------------------
     Ba1        Aaa   Aa1   Aa2   Aa3   A1    A2    A3   Baa1   Baa2  Baa3  Ba1
     -------------------------------------------------------------------------------------------------------------
     Ba2        Aaa   Aa1   Aa2   Aa3   A1    A2    A3   Baa1   Baa2  Baa3  Ba1   Ba2
     -------------------------------------------------------------------------------------------------------------
     Ba3        Aaa   Aa1   Aa2   Aa3   A1    A2    A3   Baa1   Baa2  Baa3  Ba1   Ba2   Ba3
     -------------------------------------------------------------------------------------------------------------
     B1         Aaa   Aa1   Aa2   Aa3   A1    A2    A3   Baa1   Baa2  Baa3  Ba1   Ba2   Ba3   B1
     -------------------------------------------------------------------------------------------------------------
     B2         Aaa   Aa1   Aa2   Aa3   A1    A2    A3   Baa1   Baa2  Baa3  Ba1   Ba2   Ba3   B1    B2
     -------------------------------------------------------------------------------------------------------------
     B3         Aaa   Aa1   Aa2   Aa3   A1    A2    A3   Baa1   Baa2  Baa3  Ba1   Ba2   Ba3   B1    B2    B3
     -------------------------------------------------------------------------------------------------------------
     Caa        Aaa   Aa1   Aa2   Aa3   A1    A2    A3   Baa1   Baa2  Baa3  Ba1   Ba2   Ba3   B1    B2    B3   Caa
     -------------------------------------------------------------------------------------------------------------


Rating of the Lower Rated Party (a)



            IMPLIED JOINT SUPPORT RATING FOR MEDIUM CORRELATION CASE



         Rating of the Higher Rated Party

     ------------------------------------------------------------------------------------------------------
                 Aaa  Aa1  Aa2   Aa3   A1   A2    A3   Baa1  Baa2  Baa3  Ba1   Ba2   Ba3  B1   B2  B3   Caa
     ------------------------------------------------------------------------------------------------------
                                                     
     Aaa         Aaa
     ------------------------------------------------------------------------------------------------------
     Aa1         Aaa  Aaa
     ------------------------------------------------------------------------------------------------------
     Aa2         Aaa  Aaa  Aa1
     ------------------------------------------------------------------------------------------------------
     Aa3         Aaa  Aaa  Aa1   Aa1
     ------------------------------------------------------------------------------------------------------
     A1          Aaa  Aaa  Aa1   Aa1  Aa1
     ------------------------------------------------------------------------------------------------------
     A2          Aaa  Aaa  Aa1   Aa1  Aa2   Aa2
     ------------------------------------------------------------------------------------------------------
(a)  A3          Aaa  Aaa  Aa1   Aa1  Aa2   Aa2  Aa3
     ------------------------------------------------------------------------------------------------------
     Baa1        Aaa  Aaa  Aa1   Aa1  Aa2   Aa3  A1    A2
     ------------------------------------------------------------------------------------------------------
     Baa2        Aaa  Aaa  Aa1   Aa1  Aa2   Aa3  A1    A2    A3
     ------------------------------------------------------------------------------------------------------
     Baa3        Aaa  Aaa  Aa1   Aa1  Aa2   Aa3  A1    A2    A3    Baa2
     ------------------------------------------------------------------------------------------------------
     Ba1         Aaa  Aa1  Aa1   Aa2  Aa3   A1   A2    A3    Baa1  Baa2  Baa3
     ------------------------------------------------------------------------------------------------------
     Ba2         Aaa  Aa1  Aa1   Aa2  Aa3   A1   A2    A3    Baa1  Baa2  Ba1   Ba1
     ------------------------------------------------------------------------------------------------------
     Ba3         Aaa  Aa1  Aa1   Aa2  Aa3   A1   A2    A3    Baa1  Baa3  Ba1   Ba1   Ba2
     ------------------------------------------------------------------------------------------------------


Rating of the Lower Rated Party (a)

              IMPLIED JOINT SUPPORT RATING FOR LOW CORRELATION CASE



         Rating of the Higher Rated Party

     ---------------------------------------------------------------------------------------------------------
                 Aaa  Aa1  Aa2   Aa3  A1    A2   A3    Baa1  Baa2  Baa3  Ba1   Ba2   Ba3  B1    B2   B3    Caa
     ---------------------------------------------------------------------------------------------------------
                                                        
     Aaa         Aaa
     ---------------------------------------------------------------------------------------------------------
     Aa1         Aaa  Aaa
     ---------------------------------------------------------------------------------------------------------
     Aa2         Aaa  Aaa  Aaa
     ---------------------------------------------------------------------------------------------------------
     Aa3         Aaa  Aaa  Aaa   Aaa
     ---------------------------------------------------------------------------------------------------------
     A1          Aaa  Aaa  Aaa   Aaa  Aaa
     ---------------------------------------------------------------------------------------------------------
     A2          Aaa  Aaa  Aaa   Aaa  Aaa   Aa1
     ---------------------------------------------------------------------------------------------------------
     A3          Aaa  Aaa  Aaa   Aaa  Aaa   Aa1  Aa2
     ---------------------------------------------------------------------------------------------------------
(a)  Baa1        Aaa  Aaa  Aaa   Aaa  Aaa   Aa1  Aa3   Aa3
     ---------------------------------------------------------------------------------------------------------
     Baa2        Aaa  Aaa  Aaa   Aaa  Aaa   Aa1  Aa3   A1    A1
     ---------------------------------------------------------------------------------------------------------
     Baa3        Aaa  Aaa  Aaa   Aaa  Aa1   Aa1  Aa3   A1    A1    Baa1
     ---------------------------------------------------------------------------------------------------------
     Ba1         Aaa  Aaa  Aaa   Aa1  Aa1   Aa2  A1    A1    A2    Baa1  Baa3
     ---------------------------------------------------------------------------------------------------------
     Ba2         Aaa  Aaa  Aa1   Aa1  Aa1   Aa2  A1    A1    A2    Baa2  Baa3  Ba1
     ---------------------------------------------------------------------------------------------------------
     Ba3         Aaa  Aaa  Aa1   Aa1  Aa2   Aa3  A1    A2    A3    Baa2  Baa3  Ba1   Ba2
     ---------------------------------------------------------------------------------------------------------
     B1          Aaa  Aa1  Aa1   Aa2  Aa3   Aa3  A1    A3    Baa1  Baa2  Ba1   Ba1   Ba2  Ba3
     ---------------------------------------------------------------------------------------------------------
     B2          Aaa  Aa1  Aa2   Aa2  Aa3   A1   A2    A3    Baa1  Baa3  Ba1   Ba1   Ba3  Ba3   B1
     ---------------------------------------------------------------------------------------------------------
     B3          Aaa  Aa1  Aa2   Aa3  A1    A1   A3    Baa1  Baa2  Baa3  Ba1   Ba2   Ba3  B1    B1   B3
     ---------------------------------------------------------------------------------------------------------
     Caa         Aaa  Aa1  Aa2   Aa3  A1    A2   A3    Baa1  Baa2  Baa3  Ba1   Ba2   Ba3  B1    B2   B3    Caa
     ---------------------------------------------------------------------------------------------------------


Rating of the Lower Rated Party (a)

Notwithstanding the foregoing, in the event that under the Triparty Agreement
the Offsetting Counterparty has acceded to the rights of the Counterparty and no
swap transaction has been effected with an additional contingent counterparty or
replacement swap counterparty under the circumstances contemplated by Section
2.02 of the Triparty Agreement, then the term "Moody's Joint Probability" shall
refer to the Offsetting Counterparty's long term

                                      B-2



senior unsecured credit rating assigned by Moody's (and, for avoidance of doubt,
the obligations of the Counterparty specified in Section 4 of this Confirmation
shall constitute obligations of the Offsetting Counterparty).

         "Offsetting Counterparty" means General Motors Acceptance Corporation
or any successor thereto ("GMAC") under the Fallback Swap Transactions entered
into between the Trust and GMAC.

         "Primary Party": the Counterparty, unless a Substitute Swap Provider
has been obtained, in which case it shall be the Substitute Swap Provider or, if
applicable, a guarantor thereof.

         "Rating Agency": each of S&P and Moody's.

         "S&P": Standard & Poor's Ratings Services and its successors.

         "S&P Joint Probability" means the joint probability determined by S&P
of the long-term likelihood of payment under the interest rate swap determined
by locating the intersection of the Counterparty's long term senior unsecured
debt rating and the Offsetting Counterparty's long-term senior unsecured debt
rating in the following table:



     PRIMARY PARTY
     ----------------------------------------------------------------------------------------------------------
                    AAA      AA+       AA        AA-      A+         A        A-        BBB+     BBB       BBB-
     ----------------------------------------------------------------------------------------------------------
                                                                             
     AAA            AAA      AAA       AAA       AAA      AAA       AAA       AAA       AAA      AAA       AAA
     ----------------------------------------------------------------------------------------------------------
     AA+            AAA      AAA       AAA       AAA      AAA       AAA       AAA       AAA      AAA       AAA
     ----------------------------------------------------------------------------------------------------------
     AA             AAA      AAA       AAA       AAA      AAA       AAA       AAA       AA+      AA+       AA+
     ----------------------------------------------------------------------------------------------------------
(a)  AA-            AAA      AAA       AAA       AA+      AA+       AA+       AA+       AA+      AA+       AA
     ----------------------------------------------------------------------------------------------------------
     A+             AAA      AAA       AAA       AA+      AA+       AA+       AA+       AA       AA        AA-
     ----------------------------------------------------------------------------------------------------------
     A              AAA      AAA       AAA       AA+      AA+       AA        AA        AA-      AA-       A+
     ----------------------------------------------------------------------------------------------------------
     A-             AAA      AAA       AAA       AA+      AA+       AA        AA-       A+       A+        A
     ----------------------------------------------------------------------------------------------------------
     BBB+           AAA      AAA       AA+       AA+      AA        AA-       A+        A        A         A-
     ----------------------------------------------------------------------------------------------------------
     BBB            AAA      AAA       AA+       AA+      AA        AA-       A+        A        A-        BBB+
     ----------------------------------------------------------------------------------------------------------
     BBB-           AAA      AAA       AA+       AA       AA-       A+        A         A-       BBB+      BBB
     ----------------------------------------------------------------------------------------------------------


CONTINGENT PARTY (a)

Notwithstanding the foregoing, (i) in the event that the long-term senior
unsecured debt rating of either the Primary Party or the Contingent Party is
rated below BBB- by S&P, then the S&P Joint Probability shall be the higher of
the then current long-term senior unsecured debt rating of the Primary Party and
the Contingent Party and (ii) in the event that under the Triparty Agreement the
Offsetting Counterparty has acceded to the rights of the Counterparty and no
swap transaction has been effected with an additional contingent counterparty or
replacement swap counterparty under the circumstances contemplated by Section
2.02 of the Triparty Agreement, then the term "S&P Joint Probability" shall
refer to the Offsetting Counterparty's long-term senior unsecured credit rating
assigned by S&P (and, for the avoidance of doubt, the obligations of the
Counterparty specified in Section 4 of this Confirmation shall constitute
obligations of the Offsetting Counterparty).

         "Triparty Agreement": the Triparty Contingent Assignment Agreement,
dated August 8, 2002, among the Trust, the Offsetting Counterparty and the
Counterparty.

                                      B-3