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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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) 11/09/2018 (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 11/09/2018   S   6,147 D $ 422.1374 1,373,565 I By Prescott Associates L.P. (1) Common Stock 11/09/2018   S   285 D $ 422.1374 52,751 I By Prescott International Partners L.P. (2) Common Stock 11/09/2018   S   7,629 D $ 422.1374 692,435 I By Idoya Partners L.P. (3) Common Stock 11/09/2018   S   939 D $ 422.1374 82,091 I By Prescott Investors Profit Sharing Trust (4) Common Stock 11/12/2018   S   836 D $ 419.9662 1,372,729 I By Prescott Associates L.P. (1) Common Stock 11/12/2018   S   39 D $ 419.9662 52,712 I By Prescott International Partners L.P. (2) Common Stock 11/12/2018   S   1,036 D $ 419.9662 691,399 I By Idoya Partners L.P. (3) Common Stock 11/12/2018   S   128 D $ 419.9662 81,963 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)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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
SMITH THOMAS W 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

Signatures

/s/ Scott J. Vassalluzzo		11/13/2018
**Signature of Reporting Person		Date
/s/ Thomas W. Smith		11/13/2018
**Signature of Reporting Person		Date
/s/ Scott J. Vassalluzzo, Managing Member, PRESCOTT GENERAL PARTNERS LLC		11/13/2018
**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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