UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K

Current Report

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 13, 2011

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

On May 13, 2011, DriveTime Automotive Group, Inc. (“DTAG”) and DriveTime Acceptance Corporation (“DTAC”), through DTAC’s wholly-owned subsidiaries, DT Warehouse IV, LLC (“DT Warehouse IV”), and DT Credit Company, LLC (“DTCC”), entered into Amendment No. 1 to the Loan and Security Agreement (the “Amendment”), amending the Loan and Servicing Agreement, dated July 23, 2010, by and among DT Warehouse IV, as Borrower, DTCC, as Servicer, Wells Fargo Bank, National Association, as Backup Servicer, Paying Agent and Securities Intermediary, the Commercial Paper Conduits from time to time party thereto, the Financial Institutions from time to time party thereto, and The Royal Bank of Scotland plc (“RBS”), as Program Agent for the Conduit Lenders and Committed Lenders (the “Loan and Servicing Agreement”).

The Amendment extends the maturity of the Loan and Servicing Agreement from July 22, 2011 to May 11, 2012. Additionally, the Amendment increases the warehouse facility size from $50.0 million to $125.0 million, increases the advance rate from 50% to 53% and decreases the interest rate to RBS’ cost of funds plus 1.50% from 2.50%.

The foregoing description of the Amendment and the Loan and Servicing Agreement is only a summary, does not purport to be complete and is qualified in its entirety by reference to the Amendment, which will be filed as an exhibit to DTAG’s and DTAC’s next Quarterly Report on Form 10-Q and the Loan and Servicing Agreement, which is filed as Exhibit 10.11 to Amendment No. 7 to the Form S-4 Registration Statement filed on April 27, 2011 and is incorporated herein by reference.

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SIGNATURES

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized.

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