UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                                    FORM 8-K

                                 CURRENT REPORT

     Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934

        Date of Report (Date of earliest event reported): APRIL 18, 2006

                          CREDIT ACCEPTANCE CORPORATION
             (Exact Name of Registrant as Specified in its Charter)

                        Commission File Number 000-20202


                                                          
                MICHIGAN                                          38-1999511
     (State or other jurisdiction of                           (I.R.S. Employer
     incorporation or organization)                          Identification No.)



                                                               
  25505 W. TWELVE MILE ROAD, SUITE 3000
          SOUTHFIELD, MICHIGAN                                    48034-8339
(Address of Principal Executive Offices)                          (Zip Code)


      (Registrant's telephone number, including area code): (248) 353-2700

                                   ----------

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

[ ]  Written Communications pursuant to Rule 425 under the Securities Act (17
     CFR 230.425)

[ ]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
     240.14a-12)

[ ]  Pre-commencement communications pursuant to Rule 14d-2(b) under the
     Exchange Act (17 CFR 240.14d-2(b))

[ ]  Pre-commencement communications pursuant to Rule 13e-4(c) under the
     Exchange Act (17 CFR 240.13e-4(c))



ITEM 1.01 ENTRY INTO A MATERIAL DEFINITIVE AGREEMENT.

The information set forth below under Item 2.03 is hereby incorporated by
reference into this Item 1.01.

ITEM 2.03 CREATION OF A DIRECT FINANCIAL OBLIGATION OR AN OBLIGATION UNDER AN
     OFF - BALANCE SHEET ARRANGEMENT OF A REGISTRANT.

On April 18, 2006, Credit Acceptance Corporation (the "Company") entered into a
$100.0 million asset-backed non-recourse secured financing. The parties to this
transaction are the Company, as servicer, Credit Acceptance Auto Dealer Loan
Trust 2006-1, as issuer, Credit Acceptance Funding LLC 2006-1, as seller,
Wachovia Capital Markets, LLC, as initial purchaser, JPMorgan Chase Bank, N.A.,
as trust collateral agent and indenture trustee, Systems & Services
Technologies, Inc., as backup servicer, and Radian Asset Assurance Inc. and XL
Capital Assurance, Inc., as the insurers.

The terms and conditions of this transaction are set forth in the agreements
attached hereto as Exhibits 4(f)(71) through 4(f)(76), which agreements are
incorporated herein by reference. This transaction is also summarized in a press
release issued by the Company on April 18, 2006, which is attached hereto as
Exhibit 99(a) and is incorporated herein by reference.

The secured financing creates loans for which the Company's special purpose
trust created for the transaction is liable and which are secured by all the
assets of the trust and of another subsidiary created for the transaction. Such
loans are non-recourse to the Company, even though the trust, the subsidiary and
the Company are consolidated for financial reporting purposes. Except for the
Company's servicing fee and payments due to dealer-partners, the Company does
not receive, or have any rights in, any portion of such collections until the
trust's underlying indebtedness is paid in full, either through collections or
through a prepayment of the indebtedness. Thereafter, remaining collections
would be paid over to the subsidiary as the sole beneficiary of the trust where
they would be available to be distributed to the Company as the sole member of
subsidiary, or the Company may choose to cause the subsidiary to repurchase the
remaining dealer-partner advances from the trust and then dissolve, whereby the
Company would become the owner of such remaining collections.

The financing may be accelerated upon the occurrence of an "indenture event of
default." An "indenture event of default" includes: a default by the trust in
the payment of interest or principal when due; any breach of covenant or any
material breach of representation or warranty that is not cured within the
specified time following notice; the occurrence of certain bankruptcy or
insolvency events involving the trust or the subsidiary; a draw on one of the
financial insurance policies; the failure of collections on the transferred
assets to be more than a threshold percentage of projected collections for three
consecutive collection periods; a transfer by the subsidiary of its ownership of
the trust; the failure of the subsidiary to observe in any material respect any
of its limited purpose covenants after giving effect to notice and grace
periods; the failure of the trustee to have a valid and perfected first priority
security interest in the trust property if such failure has not been cured
within ten business days; and the cessation of any transaction document to be in
full force and effect.



ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS.

     (c) Exhibits.


        
4(f)(71)   Indenture dated April 18, 2006 between Credit Acceptance Auto Dealer
           Loan Trust 2006-1 and JPMorgan Chase Bank, N.A.

4(f)(72)   Sale and Servicing Agreement dated April 18, 2006 among the Company,
           Credit Acceptance Auto Dealer Loan Trust 2006-1, Credit Acceptance
           Funding LLC 2006-1, JPMorgan Chase Bank, N.A., and Systems & Services
           Technologies, Inc.

4(f)(73)   Backup Servicing Agreement dated April 18, 2006 among the Company,
           Credit Acceptance Funding LLC 2006-1, Credit Acceptance Auto Dealer
           Loan Trust 2006-1, Systems & Services Technologies, Inc., Radian
           Asset Assurance Inc., XL Capital Assurance Inc. and JPMorgan Bank,
           N.A.

4(f)(74)   Amended and Restated Trust Agreement dated April 18, 2006 between
           Credit Acceptance Funding LLC 2006-1 and U.S. Bank Trust National
           Association

4(f)(75)   Contribution Agreement dated April 18, 2006 between the Company and
           Credit Acceptance Funding LLC 2006-1

4(f)(76)   Intercreditor Agreement dated April 18, 2006 among the Company, CAC
           Warehouse Funding Corporation II, Credit Acceptance Auto Dealer Loan
           Trust 2006-1, Credit Acceptance Funding LLC 2006-1, Wachovia Capital
           Markets, LLC, as agent, J.P.Morgan Chase Bank, N.A., as agent, and
           Comerica Bank, as agent

99(a)      Press Release dated April 18, 2006




                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                        CREDIT ACCEPTANCE CORPORATION
                                        (Registrant)


                                        By: /s/ Douglas W. Busk
                                            ------------------------------------
                                            Douglas W. Busk
                                            Treasurer
                                            April 24, 2006



                                INDEX OF EXHIBITS



EXHIBIT
  NO.                                   DESCRIPTION
-------   ----------------------------------------------------------------------
       
4(f)71    Indenture dated April 18, 2006 between Credit Acceptance Auto Dealer
          Loan Trust 2006-1 and JPMorgan Chase Bank, N.A.

4(f)72    Sale and Servicing Agreement dated April 18, 2006 among the Company,
          Credit Acceptance Auto Dealer Loan Trust 2006-1, Credit Acceptance
          Funding LLC 2006-1, JPMorgan Chase Bank, N.A., and Systems & Services
          Technologies, Inc.

4(f)73    Backup Servicing Agreement dated April 18, 2006 among the Company,
          Credit Acceptance Funding LLC 2006-1, Credit Acceptance Auto Dealer
          Loan Trust 2006-1, Systems & Services Technologies, Inc., Radian Asset
          Assurance Inc., XL Capital Assurance Inc. and JPMorgan Bank, N.A.

4(f)74    Amended and Restated Trust Agreement dated April 18, 2006 between
          Credit Acceptance Funding LLC 2006-1 and U.S. Bank Trust National
          Association

4(f)75    Contribution Agreement dated April 18, 2006 between the Company and
          Credit Acceptance Funding LLC 2006-1

4(f)76    Intercreditor Agreement dated April 18, 2006 among the Company, CAC
          Warehouse Funding Corporation II, Credit Acceptance Auto Dealer Loan
          Trust 2006-1, Credit Acceptance Funding LLC 2006-1, Wachovia Capital
          Markets, LLC, as agent, J.P.Morgan Chase Bank, N.A., as agent, and
          Comerica Bank, as agent

99(a)     Press Release dated April 18, 2006