UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934
 

                                                UNITED RENTALS, INC.                                                  

(Name of Issuer)

                                     Common Stock, $0.01 par value per share                                       

(Title of Class of Securities)

                                                              911363109                                                            

(CUSIP Number)

                                                          August 21, 2007                                                         

(Date of Event which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

[X] Rule 13d-1(b)

[  ]  Rule 13d-1(c)

[  ]  Rule 13d-1(d)

  CUSIP No. 911363109   Page 2 of 9 Pages

1.	NAME OF REPORTING PERSONS IRS IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
	Cheyne Capital Management (UK) LLP
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP  (a) [  ]                                                                                                               (b) [X]
3.	SEC USE ONLY
4.	CITIZENSHIP OR PLACE OF ORGANIZATION England & Wales

NUMBER  OF  SHARES BENEFICIALLY  OWNED  BY  EACH  REPORTING  PERSON  WITH	5.	SOLE VOTING POWER 4,245,540
	6.	SHARED VOTING POWER 0
	7.	SOLE DISPOSITIVE POWER 4,245,540
	8.	SHARED DISPOSITIVE POWER 0

9.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,245,540
10.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
	CERTAIN SHARES   [   ]
11.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 5.12%
12.	TYPE OF REPORTING PERSON IA

  CUSIP No. 911363109   Page 3 of 9 Pages

1.	NAME OF REPORTING PERSONS IRS IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
	Cheyne General Partner Inc.
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP  (a) [  ]                                                                                                               (b) [X]
3.	SEC USE ONLY
4.	CITIZENSHIP OR PLACE OF ORGANIZATION England & Wales

NUMBER  OF  SHARES BENEFICIALLY  OWNED  BY  EACH  REPORTING  PERSON  WITH	5.	SOLE VOTING POWER 0
	6.	SHARED VOTING POWER 4,245,540
	7.	SOLE DISPOSITIVE POWER 0
	8.	SHARED DISPOSITIVE POWER 4,245,540

9.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,245,540
10.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
	CERTAIN SHARES   [   ]
11.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 5.12%
12.	TYPE OF REPORTING PERSON CO

  CUSIP No. 911363109   Page 4 of 9 Pages

Item 1.	(a)	Name of Issuer:
		United Rentals, Inc.
	(b)	Address of Issuer's Principal Executive Offices:
		Four Greenwich Office Park
		Greenwich, CT 06830
Item 2.	(a)	Name of Person Filing:
		This Schedule 13G is being filed jointly by Cheyne Capital Management (UK) LLP and Cheyne General Partner Inc.

(b)	Address of Principal Business Office or, if none, Residence:
	The address of Cheyne Capital Management (UK) LLP is Stornoway House, 13 Cleveland Row, London, SW1A 3DH, England..
	The address of Cheyne General Partner Inc. is Walker House, Mary Street, PO Box 908GT, Grand Cayman, Cayman Islands.
(c)	Citizenship:
	Cheyne Capital Management (UK) LLP is a limited liability partnership incorporated under the laws of England and Wales.
	Cheyne General Partner Inc. is a Cayman Islands corporation.
(d)	Title of Class of Securities:
	Common Stock, $0.01 par value per share.
(e)	CUSIP Number:
	911363109

Item 3.	If this statement is filed pursuant to Sections 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
	(a)	[  ]  Broker or dealer registered under Section 15 of the Act.
	(b)	[  ]  Bank as defined in Section 3(a)(6) of the Act.
	(c)	[  ]  Insurance company as defined in Section 3(a)(19) of the Act.
	(d)	[  ]  Investment company registered under Section 8 of the Investment       Company Act of 1940.
	(e)	[X] An investment adviser in accordance with Section 240.13d-1(b)       (1)(ii)(E).*      * Cheyne Capital Management (UK) LLP only.
	(f)	[  ]  An employee benefit plan or endowment fund in accordance with        Section 240.13d-1(b)(1)(ii)(F).

  CUSIP No. 911363109   Page 5 of 9 Pages

(g) [  ]  A parent holding company or control person in accordance with
       Section 240.13d-1(b)(1)(ii)(G).

	(h)	[  ]  A savings association as defined in Section 3(b) of the Federal        Deposit Insurance Act.
	(i)	[  ]  A church plan that is excluded from the definition of an investment       company under Section 3(c)(14) of the Investment Company Act of       1940.
	(j)	[  ]  Group, in accordance with Section 240.13d-1(b)(1)(ii)(J).
Item 4.	Ownership.
	(a)	Amount Beneficially Owned:**
	(b)	Percent of Class:**
	(c)	Number of Shares as to which the person has:
		(i)	sole power to vote or direct the vote**
		(ii)	shared power to vote or direct the vote**
		(iii)	sole power to dispose or direct the disposition of**
		(iv)	shared power to dispose or direct the disposition of**
	**See Attachment A

Item 5.	Ownership of Five Percent or Less of a Class.
	If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [  ].
Item 6.	Ownership of More than Five Percent on Behalf of Another Person.
	Cheyne Special Situations Fund L.P., a Cayman Islands limited partnership.
Item 7.	Identification and Classification of the subsidiary which Acquired the Security Being Reported on By the Parent Holding Company or Control Person.
	Not applicable.
Item 8.	Identification and Classification of Members of the Group.
	Not applicable.
Item 9.	Notice of Dissolution of Group.
	Not applicable.

  CUSIP No. 911363109   Page 6 of 9 Pages

Item 10.	Certification.
	By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

  CUSIP No. 911363109   Page 7 of 9 Pages

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: August 28, 2007
CHEYNE CAPITAL MANAGEMENT (UK) LLP
By	/s/ Gary Ibbott
Name:	Gary Ibbott
Title:	Chief Financial Officer

CHEYNE GENERAL PARTNER INC.
By	/s/ Daniele Hendry
Name:	Daniele Hendry
Title:	Director

  CUSIP No. 911363109   Page 8 of 9 Pages

AGREEMENT OF JOINT FILING

In accordance with Rule 13d-1(k) under the Act, the undersigned hereby agree to the joint filing with the other persons signatory below of a statement on Schedule 13G or any amendments thereto, with respect to the Common Stock of United Rentals, Inc., and that this Agreement be included as an attachment to such filing.

This Agreement may be executed in any number of counterparts each of which shall be deemed to be an original and all of which together shall be deemed to constitute one and the same Agreement.

IN WITNESS WHEREOF, the undersigned hereby execute this Agreement on this 28 day of
August 2007.

CHEYNE CAPITAL MANAGEMENT (UK) LLP
By	/s/ Gary Ibbott
Name:	Gary Ibbott
Title:	Chief Financial Officer

CHEYNE GENERAL PARTNER INC.
By	/s/ Daniele Hendry
Name:	Daniele Hendry
Title:	Director

  CUSIP No. 911363109   Page 9 of 9 Pages

ATTACHMENT A

1. Beneficial Ownership (Item 4(a) and (b) of Schedule 13G)

As of August 21, 2007, Cheyne Capital Management (UK) LLP ("CCMUK"), as the investment manager of Cheyne Special Situations Fund L.P. ("CLP"), may be deemed to have sole power to vote or to direct the voting of and to dispose or to direct the disposition of 4,245,540 shares of Common Stock of United Rentals, Inc. (the "Common Stock"). Accordingly, CCMUK may be deemed to be the beneficial owner of the 4,245,540 shares of Common Stock, which, based on there being 82,991,556 shares of Common Stock outstanding as reported in the Form 10-Q of United Rentals, Inc. for the quarter ending June 30, 2007 (the "Form 10-Q"), represents approximately 5.12% of the outstanding Common Stock.

As of August 21, 2007, Cheyne General Partner Inc. ("CGP"), as the general partner of CLP, may be deemed to have shared power to vote or to direct the voting of and to dispose or to direct the disposition of 4,245,540 shares of Common Stock. Accordingly, CGP may be deemed to be the beneficial owner of the 4,245,540 shares of Common Stock, which, based on there being 82,991,556 shares of Common Stock outstanding as reported in the Form 10-Q, represents approximately 5.12% of the outstanding Common Stock.

As of August 21, 2007, CLP was the direct beneficial owner of 4,245,540 shares of Common Stock, which, based on there being 82,991,556 shares of Common Stock outstanding as reported in the Form 10-Q, represents approximately 5.12% of the outstanding Common Stock.

Each of CCMUK and CGP disclaim beneficial ownership of the 4,245,540 shares of Common Stock, except to the extent of any pecuniary interest therefrom.

2. Power to Vote and Dispose (Item 4(c) of Schedule 13G)

As of August 21, 2007, CCMUK may be deemed to have sole power to vote or to direct the voting of and to dispose or to direct the disposition of the 4,245,540 shares of Common Stock.

As of August 21, 2007, CGP may be deemed to have shared power to vote or to direct the voting of and to dispose or to direct the disposition of the 4,245,540 shares of Common Stock.

Each of CCMUK and CGP disclaim beneficial ownership of the 4,245,540 shares of Common Stock, except to the extent of any pecuniary interest therefrom.