Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement No. 333-114744 of Avis Budget Group, Inc. (formerly Cendant Corporation) on Form S-8 of our report dated June 28, 2007, appearing in this Annual Report on Form 11-K of the AB Car Rental Services, Inc. Retirement Savings Plan for the year ended December 31, 2006.

/s / Deloitte & Touche LLP

New York, New York

June 28, 2007