Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Prescott General Partners LLC
  2. Issuer Name and Ticker or Trading Symbol
CREDIT ACCEPTANCE CORP [CACC]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
Member of Section 13(d) Group
(Last)
(First)
(Middle)
2200 BUTTS ROAD, SUITE 320
3. Date of Earliest Transaction (Month/Day/Year)
08/23/2018
(Street)

BOCA RATON, FL 33431
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 08/23/2018   S   10,865 D $ 454.5648 1,408,189 I By Prescott Associates L.P. (1)
Common Stock 08/23/2018   S   504 D $ 454.5648 54,356 I By Prescott International Partners L.P. (2)
Common Stock 08/23/2018   S   13,472 D $ 454.5648 735,403 I By Idoya Partners L.P. (3)
Common Stock 08/23/2018   S   1,659 D $ 454.5648 87,378 I By Prescott Investors Profit Sharing Trust (4)
Common Stock 08/24/2018   S   533 D $ 447.5554 1,407,656 I By Prescott Associates L.P. (1)
Common Stock 08/24/2018   S   25 D $ 447.5554 54,331 I By Prescott International Partners L.P. (2)
Common Stock 08/24/2018   S   661 D $ 447.5554 734,742 I By Idoya Partners L.P. (3)
Common Stock 08/24/2018   S   81 D $ 447.5554 87,297 I By Prescott Investors Profit Sharing Trust (4)
Common Stock 08/27/2018   S   3,731 D $ 450.7814 1,403,925 I By Prescott Associates L.P. (1)
Common Stock 08/27/2018   S   173 D $ 450.7814 54,158 I By Prescott International Partners L.P. (2)
Common Stock 08/27/2018   S   4,626 D $ 450.7814 730,116 I By Idoya Partners L.P. (3)
Common Stock 08/27/2018   S   570 D $ 450.7814 86,727 I By Prescott Investors Profit Sharing Trust (4)
Common Stock               670,397 I By Ridgeview Smith Investments LLC (5)
Common Stock               58,750 I By Thomas W. Smith Family Accounts (6)
Common Stock               13,948 I By Thomas W. Smith Foundation (7)
Common Stock               63,325 D (8)  
Common Stock               2,758 I By Scott J. Vassalluzzo Family Accounts (9)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Prescott General Partners LLC
2200 BUTTS ROAD
SUITE 320
BOCA RATON, FL 33431
    X   Member of Section 13(d) Group
VASSALLUZZO SCOTT J
2200 BUTTS ROAD
SUITE 320
BOCA RATON, FL 33431
  X   X   Member of Section 13(d) Group
SMITH THOMAS W
2200 BUTTS ROAD
SUITE 320
BOCA RATON, FL 33431
    X   Member of Section 13(d) Group

Signatures

 /s/ Scott J. Vassalluzzo, Managing Member of Prescott General Partners LLC   08/27/2018
**Signature of Reporting Person Date

 /s/ Scott J. Vassalluzzo   08/27/2018
**Signature of Reporting Person Date

 /s/ Thomas W. Smith   08/27/2018
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) These shares are owned directly by Prescott Associates L.P. ("Prescott Associates"), a private investment limited partnership, and are beneficially owned indirectly by Prescott General Partners LLC ("PGP"), a Delaware limited liability company, as general partner of Prescott Associates. Messrs. Thomas W. Smith and Scott J. Vassalluzzo are each a managing member of PGP. PGP disclaims beneficial ownership of these shares in excess of its pecuniary interest under Rule 16a-1(a)(2)(ii)(B). The address for Prescott Associates is 2200 Butts Road, Suite 320, Boca Raton, FL 33431.
(2) These shares are owned directly by Prescott International Partners L.P. ("PIP"), a private investment limited partnership, and are beneficially owned indirectly by PGP as general partner of PIP. PGP disclaims beneficial ownership of these shares in excess of its pecuniary interest under Rule 16a-1(a)(2)(ii)(B). The address for PIP is 2200 Butts Road, Suite 320, Boca Raton, FL 33431.
(3) These shares are owned directly by Idoya Partners L.P. ("Idoya"), a private investment limited partnership, and are beneficially owned indirectly by PGP as general partner of Idoya. PGP disclaims beneficial ownership of these shares in excess of its pecuniary interest under Rule 16a-1(a)(2)(ii)(B). The address for Idoya is 2200 Butts Road, Suite 320, Boca Raton, FL 33431.
(4) These shares are owned directly by the Prescott Investors Profit Sharing Trust (the "Trust"), for which each of Messrs. Smith and Vassalluzzo serve as a trustee. The inclusion of these shares in this report shall not be deemed an admission of beneficial ownership for purposes of Section 16 or any other purpose and each of Messrs. Smith and Vassalluzzo disclaims beneficial ownership of these shares in excess of his pecuniary interest under Rule 16a-8(b)(2)(ii). The address of the Trust is 2200 Butts Road, Suite 320, Boca Raton, FL 33431.
(5) These shares are owned directly by Ridgeview Smith Investments LLC ("Ridgeview"), a limited liability company established by Mr. Smith for the benefit of his family and are beneficially owned indirectly by Mr. Smith as the managing member of Ridgeview. Mr. Smith disclaims beneficial ownership of these shares in excess of his pecuniary interest under Rule 16a-1(a)(2)(iii). The address of Ridgeview is 2200 Butts Road, Suite 320, Boca Raton, FL 33431.
(6) These shares are owned directly by investment accounts established for the benefit of certain family members of Thomas W. Smith. The inclusion of these shares in this report shall not be deemed an admission of beneficial ownership for purposes of Section 16 or any other purpose and Mr. Smith disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.
(7) These shares are owned directly by the Thomas W. Smith Foundation (the "Foundation") and are beneficially owned indirectly by Mr. Smith as trustee of the Foundation. Mr. Smith disclaims beneficial ownership of these shares in excess of his pecuniary interest under 16a-8(b)(2)(ii). The address for the Foundation is 2200 Butts Road, Suite 320, Boca Raton, FL 33431.
(8) These shares are owned directly by Scott J. Vassalluzzo and include 3,200 restricted stock units that have vested under the Issuer's Incentive Compensation Plan.
(9) These shares are owned directly by investment accounts established for the benefit of certain family members of Scott J. Vassalluzzo. The inclusion of these shares in this report shall not be deemed an admission of beneficial ownership for purposes of Section 16 or any other purpose and Mr. Vassalluzzo disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.
 
Remarks:
The filing of this report shall not be deemed to be an admission that the Reporting Persons comprise a "group" within the meaning of Section 13(d)(3) of the Securities Exchange Act of 1934, as amended. The Reporting Persons each disclaim beneficial ownership of the shares included in this report except to the extent of their pecuniary interest in such shares.

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