SC 13D/A

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 5)*

AutoNation, Inc.

(Name of Issuer)

Common Stock, Par Value $0.01

(Title of Class of Securities)

05329W102

(CUSIP Number)

Laurie Smiley, Esq.

Arian Colachis, Esq.

2365 Carillon Point

Kirkland, WA  98033

(425) 889-7900

(Name, Address and Telephone Number of Persons Authorized to
Receive Notices and Communications)

February 8, 2011

(Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.q

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7 for other parties to whom copies are to be sent.

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP No.  05329W102
	1.	Names of Reporting Persons Cascade Investment, L.L.C.
	2.	Check the Appropriate Box if a Member of a Group (See Instructions)
		(a)		o
		(b)		x
	3.	SEC Use Only
	4.	Source of Funds (See Instructions) WC
	5.	Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or (e)  o
	6.	Citizenship or Place of Organization State of Washington
Number of Shares Beneficially Owned by Each Reporting Person With			7.		Sole Voting Power  13,753,872(1)
			8.		Shared Voting Power -0-
			9.		Sole Dispositive Power 13,753,872(1)
			10.		Shared Dispositive Power -0-
	11.	Aggregate Amount Beneficially Owned by Each Reporting Person  13,753,872(1)
	12.	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  o
	13.	Percent of Class Represented by Amount in Row (9) 9.3%
	14.	Type of Reporting Person (See Instructions) OO

(1) All shares of Common Stock held by Cascade Investment, L.L.C. (“Cascade”) may be deemed to be beneficially owned by William H. Gates III as the sole member of Cascade.

CUSIP No.  05329W102
	1.	Names of Reporting Persons Bill & Melinda Gates Foundation Trust
	2.	Check the Appropriate Box if a Member of a Group (See Instructions)
		(a)		o
		(b)		x
	3.	SEC Use Only
	4.	Source of Funds (See Instructions) WC
	5.	Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or (e)  o
	6.	Citizenship or Place of Organization State of Washington
Number of Shares Beneficially Owned by Each Reporting Person With			7.		Sole Voting Power -0-
			8.		Shared Voting Power  10,792,100(1)
			9.		Sole Dispositive Power -0-
			10.		Shared Dispositive Power  10,792,100(1)
	11.	Aggregate Amount Beneficially Owned by Each Reporting Person  10,792,100(1)
	12.	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  o
	13.	Percent of Class Represented by Amount in Row (9) 7.3%
	14.	Type of Reporting Person (See Instructions) OO

(1)For purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended, all shares of Common Stock beneficially owned by Bill & Melinda Gates Foundation Trust (the “Trust”) may be deemed to be beneficially owned by William H. Gates III and Melinda French Gates as Co-Trustees of the Trust.

CUSIP No.  05329W102
	1.	Names of Reporting Persons Melinda French Gates
	2.	Check the Appropriate Box if a Member of a Group (See Instructions)
		(a)		o
		(b)		x
	3.	SEC Use Only
	4.	Source of Funds (See Instructions) WC
	5.	Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or (e)  o
	6.	Citizenship or Place of Organization United States of America
Number of Shares Beneficially Owned by Each Reporting Person With			7.		Sole Voting Power -0-
			8.		Shared Voting Power  10,792,100(1)
			9.		Sole Dispositive Power -0-
			10.		Shared Dispositive Power 10,792,100(1)
	11.	Aggregate Amount Beneficially Owned by Each Reporting Person 10,792,100(1)
	12.	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  o
	13.	Percent of Class Represented by Amount in Row (9) 7.3%
	14.	Type of Reporting Person (See Instructions) IN

(1)For purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended, all shares of Common Stock beneficially owned by Bill & Melinda Gates Foundation Trust (the “Trust”) may be deemed to be beneficially owned by William H. Gates III and Melinda French Gates as Co-Trustees of the Trust.

CUSIP No.  05329W102
	1.	Names of Reporting Persons William H. Gates III
	2.	Check the Appropriate Box if a Member of a Group (See Instructions)
		(a)		o
		(b)		x
	3.	SEC Use Only
	4.	Source of Funds (See Instructions) WC
	5.	Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or (e)  o
	6.	Citizenship or Place of Organization United States of America
Number of Shares Beneficially Owned by Each Reporting Person With			7.		Sole Voting Power  13,753,872(1)
			8.		Shared Voting Power  10,792,100(2)
			9.		Sole Dispositive Power  13,753,872(1)
			10.		Shared Dispositive Power  10,792,100(2)
	11.	Aggregate Amount Beneficially Owned by Each Reporting Person  24,545,972(1)(2)
	12.	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  o
	13.	Percent of Class Represented by Amount in Row (9) 16.6%
	14.	Type of Reporting Person (See Instructions) IN

(1)All shares of Common Stock held by Cascade Investment, L.L.C. (“Cascade”) may be deemed to be beneficially owned by William H. Gates III as the sole member of Cascade.

(2)For purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended, all shares of Common Stock beneficially owned by Bill & Melinda Gates Foundation Trust (the “Trust”) may be deemed to be beneficially owned by William H. Gates III and Melinda French Gates as Co-Trustees of the Trust.

EXPLANATORY STATEMENT

This Amendment No. 5 to Schedule 13D (“Amendment No. 5”) relates to the Common Stock, Par Value $0.01 per share (the “Common Stock”) of AutoNation, Inc. (the “Issuer”).  This Amendment No. 5 is being jointly filed by Cascade Investment, L.L.C. (“Cascade”), Bill & Melinda Gates Foundation Trust (the “Trust”), William H. Gates III and Melinda French Gates (collectively, the “Reporting Persons”), to amend and supplement the Items set forth below of the Reporting Persons’ Schedule 13D previously filed with the Securities and Exchange Commission on February 5, 2009, as amended on February 6, 2009, February 24, 2010, July 23, 2010 and August 17, 2010.   Neither the present filing nor anything contained herein shall be construed as an admission that the Reporting Persons constitute a “group” for any purpose a nd the Reporting Persons expressly disclaim membership in a group.

Item 3.    Source and Amount of Funds or Other Consideration

Cascade purchased 1,739,514 shares of Common Stock of the Issuer with its working capital for an aggregate purchase price of $55,269,314.83.

Item 5.    Interest in Securities of the Issuer

(a)     See items 11 and 13 of the cover pages to this Schedule 13D for the aggregate number and percentage of Common Stock beneficially owned by each of the Reporting Persons.

(b)     See items 7 through 10 of the cover pages to this Schedule 13D for the number and percentage of Common Stock beneficially owned by each of the Reporting Persons as to which there is sole power to vote or to direct the vote, shared power to vote or to direct the vote, and sole or shared power to dispose or to direct the disposition.

(c)     During the past sixty days, Cascade purchased 1,739,514 shares of Common Stock for cash in open market transactions on the dates and at the weighted-average purchase price per share set forth in Exhibit 99.1, attached hereto and incorporated herein by reference.

(d)     None.

(e)     Not applicable.

Item 7.    Material to be Filed as Exhibits

Exhibit 99.1Transactions during the past sixty days

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date:  February  9, 2010		CASCADE INVESTMENT, L.L.C.(1)
		By	*
			Name:	Alan Heuberger(2)
			Title:	Attorney-in-fact for Michael Larson,
				Business Manager
		BILL & MELINDA GATES FOUNDATION TRUST(1)
		By	*
			Name:	Alan Heuberger (3)
			Title:	Attorney-in-fact for each of the Co-
				Trustees, William H. Gates III and
				Melinda French Gates
		WILLIAM H. GATES III(1)
		By	*
			Name:	Alan Heuberger(3)(4)
			Title:	Attorney-in-fact
		MELINDA FRENCH GATES(1)
		By	*
			Name:	Alan Heuberger (3)
			Title:	Attorney-in-fact
	*By:		/s/Alan Heuberger
			Alan Heuberger

(1)This Amendment No. 5 is being filed jointly by the Reporting Persons pursuant to the Joint Filing Agreement dated February 5, 2009 and included with the signature page to the Reporting Persons’ Schedule 13D filed with respect to the Issuer on February 5, 2009, SEC File No. 005-40342 and incorporated by reference herein.

(2)Duly authorized under Special Limited Power of Attorney appointing Alan Heuberger attorney-in-fact, dated August 12, 2008, by and on behalf of Michael Larson, filed as Exhibit 99.1 to Amendment No. 1 to Cascade’s Schedule 13D with respect to Otter Tail Corporation on April 15, 2009, SEC File No. 005-06638 and incorporated by reference herein.

(3)Duly authorized under Special Limited Power of Attorney appointing Alan Heuberger attorney-in-fact, dated August 12, 2008, by and on behalf of William H. Gates III and Melinda French Gates as Co Trustees, filed as Exhibit 99.5 to Cascade’s Schedule 13D with respect to Grupo Televisa, S.A.B. on May 7, 2009, SEC File No. 005-60431 and incorporated by reference herein.

(4)Duly authorized under Special Limited Power of Attorney appointing Alan Heuberger attorney-in-fact, dated August 12, 2008, by and on behalf of William H. Gates III, filed as Exhibit 99.2 to Amendment No. 1 to Cascade’s Schedule 13D with respect to Otter Tail Corporation on April 15, 2009, SEC File No. 005-06638 and incorporated by reference herein.

EX-99.1

Exhibit 99.1

The table below specifies the date, amount and weighted average price per share purchased by Cascade Investment, L.L.C. (“Cascade”) during the past sixty days.  Cascade undertakes to provide upon request by the staff of the Securities and Exchange Commission full information regarding the number of shares purchased at each separate price.  All transactions were effected in the open market on the New York Stock Exchange or through Electronic Communication Networks.

Purchase Date	Number of Shares Purchased	Weighted Average Price Per Share	Range of Price Paid $
2/4/2011	202,100	$30.8726	30.7200 - 31.0000
2/7/2011	799,700	$31.5514	30.7300 - 31.7275
2/7/2011	5,800	$31.7429	31.7300 - 31.7500
2/8/2011	731,914	$32.1723	31.7000 - 32.3800