8-K

                                  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 13, 2005


                          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 incorporation or organization)             (I.R.S. Employer Identification No.)

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




       (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 7.01. REGULATION FD DISCLOSURE.

    Credit Acceptance Corporation is furnishing materials, included as Exhibit
99.1 to this report and incorporated herein by reference, which were prepared
for inclusion on its investor relations website. Credit Acceptance Corporation
is not undertaking to update these materials. This report should not be deemed
an admission as to the materiality of any information contained in these
materials.

    The information furnished in this report shall not be deemed "filed" for
purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or
otherwise subject to the liabilities of that Section, nor shall such information
be deemed incorporated by reference in any filing under the Securities Act of
1933, as amended.

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

    (c) Exhibits.

         99.1     Materials added to website on or about April 13, 2005.




                                   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/ Kenneth S. Booth
                                                   -----------------------------
                                                   Kenneth S. Booth
                                                   Chief Financial Officer
                                                   April 13, 2005






                                INDEX OF EXHIBITS



EXHIBIT NO.                            DESCRIPTION
- -----------       --------------------------------------------------------------
               
  99.1            Website Materials added to website on or about April 13, 2005.

EX-99.1

1. IS THERE ANY CASH FLOW IMPACT ASSOCIATED WITH THE CHANGE IN VALUING THE
DEALER HOLDBACK? IF SO, WHAT IS IT? IF NOT, WHY NOT?


Yes. The impact on our future cash flow is a TIMING impact. Our estimate of the
AMOUNT of future dealer holdback outflows was consistent with prior periods.
However, based on more sophisticated models, we changed our estimate of when
such payments will occur. Future dealer holdback payments, which are estimated
over a 120-month period, are now expected to be paid out earlier than we had
included in our prior estimates. The impact on the present value of future cash
flows using a 29% discount rate was approximately $23 million on a pre-tax
basis.


2. WHY DID YOU CHOOSE TO MAKE THE CHANGE IN HOW YOU VALUE THE DEALER HOLDBACK?
DID ANYTHING HAPPEN WITH THE BUSINESS THAT CAUSED YOU TO MAKE THIS CHANGE?

As described above, the change in estimate was made in response to output from
our new model. We expect to continue to improve our estimation methods and
shareholders can expect periodic revisions going forward. Since our current
estimate is our best available estimate, we expect the split between favorable
and unfavorable revisions to be approximately equal.


3. HOW SHOULD WE COMPARE FUTURE RESULTS TO PRIOR RESULTS IF THE ACCOUNTING
METHODOLOGY IS NOW DIFFERENT?


We believe shareholders will find it most useful to focus on our financial
performance captured by adjusted net income, adjusted return on capital and
adjusted economic profit. Our adjusted return on capital was 10.8% for 2003 and
12.2% for 2004 using a consistent methodology for both years.


4. IS THERE ANY CHANGE TO THE ACTUAL PAYMENT OF THE DEALER HOLDBACK? WERE THESE
PAYMENTS ACCELERATED?

No changes were made to our method for paying dealer holdback.


5. WHY ARE PROJECTED COLLECTIONS IN 2004 NOW ROUGHLY 1% BELOW PROJECTED
COLLECTIONS IN 2003?


We believe it is too early to form a precise conclusion regarding the 2004
collection rate. In reporting 2004 collection rates, we are trying to balance
providing shareholders with timely information regarding recent originations and
the desire to provide precise estimates.


A change in collection rates can be caused by (1) an expected change based on a
different mix of business or (2) a variance between expected and actual
performance. The current decline in collection rates from 2003 to 2004 is caused
by a variance between expected and actual performance.


At the time of origination, 2004 loans were expected to have approximately the
same collection rate as 2003 loans. If current forecasts for 2003 and 2004
proved to be accurate, it will mean the actual performance was less than our
initial expectation by 1%. A 1% unfavorable variance impacts the after-tax
return on capital by approximately 40 basis points. (i.e 12.0% return becomes
11.6%).


Forecasting collection rates accurately is an area of significant focus for our
Company. We view a variance of 1% for a single year as acceptable. If we can
achieve a roughly equal distribution of favorable and unfavorable variances over
time, we will be satisfied with variances for a single year in the 1-2% range.


CAUTIONARY STATEMENT REGARDING FORWARD LOOKING INFORMATION

Certain statements in this release that are not historical facts, such as those
using terms like "believes," "expects," "anticipates," "assumptions,"
"forecasts," "estimates" and those regarding the Company's future results, plans
and objectives, are "forward-looking statements" within the meaning of the
federal securities laws. These forward-looking statements represent the
Company's outlook only as of the date of this release. While the Company
believes that its forward-looking statements are reasonable, actual results
could differ materially since the statements are based on current expectations,
which are subject to risks and uncertainties. Factors that might cause such a
difference include the following:

     -   the Company's potential inability to accurately forecast and estimate
         the amount and timing of future collections,

     -   increased competition from traditional financing sources and from
         non-traditional lenders,

     -   the unavailability of funding at competitive rates of interest,

     -   the Company's potential inability to continue to obtain third party
         financing on favorable terms,

     -   the Company's potential inability to generate sufficient cash flow to
         service its debt and fund its future operations,

     -   adverse changes in applicable laws and regulations,

     -   adverse changes in economic conditions,

     -   adverse changes in the automobile or finance industries or in the
         non-prime consumer finance market,

     -   the Company's potential inability to maintain or increase the volume of
         automobile loans,

     -   an increase in the amount or severity of litigation against the
         Company,

     -   the loss of key management personnel or the inability to hire qualified
         personnel,

     -   the effect of terrorist attacks and potential attacks, and

     -   various other factors discussed in the Company's reports filed with the
         Securities and Exchange Commission.

Other factors not currently anticipated by management may also materially and
adversely affect the Company's results of operations. The Company does not
undertake, and expressly disclaims any obligation, to update or alter its
statements whether as a result of new information, future events or otherwise,
except as required by applicable law.