Prospectus Supplement No. 2
PROSPECTUS SUPPLEMENT NO. 2
(TO PROSPECTUS DATED MAY 16, 2006)
        Filed Pursuant to Rule 424(b)(7)
Registration No. 333-134170
 

$375,000,000


UNITED AUTO GROUP, INC.

     3.5% CONVERTIBLE SENIOR SUBORDINATED NOTES DUE 2026
SHARES OF COMMON STOCK ISSUABLE UPON CONVERSION OF THE NOTES

     This prospectus supplement no. 2 supplements and amends the prospectus dated May 16, 2006 (as so supplemented and amended, the “prospectus”), relating to the resale from time to time by certain selling securityholders of our 3.5% Convertible Senior Subordinated Notes Due 2026 and shares of our common stock issuable upon conversion of the notes.

     This prospectus supplement should be read in conjunction with and accompanied by the prospectus and is qualified by reference to the prospectus, except to the extent that the information in this prospectus supplement supersedes the information contained in the prospectus.

     The information appearing in the table below, which is based on information provided by or on behalf of the named selling security holders, supplements and amends the information in the table appearing under the heading “Selling Security Holders” in the prospectus. The percentage of notes outstanding beneficially owned by each selling securityholder is based on $375,000,000 aggregate initial principal amount of notes outstanding. The number of shares of common stock owned prior to the offering excludes shares of common stock issuable upon conversion of the notes.

__________________________________

    Convertible Notes   Common Stock 
                 
    Principal Amount of
Convertible Notes
Beneficially Owned
and Offered Hereby
 

Percentage of
Notes
Outstanding

  Number of
Shares
Owned
  Number of
Shares
Owned
         
         
         
 
Asante Health Systems  $ 70,000   *   0   ** 
                 
Basso Fund Ltd.  $ 80,000   *   0   ** 
                 
Basso Holdings Ltd.  $ 1,680,000   *   0   ** 
                 
Basso Multi-Strategy Holdings Fund Ltd.  $ 240,000   *   0   ** 
                 
CALAMOS Convertible Opportunities and Income Fund  $ 1,960,000   *   0   ** 
                 
CALAMOS Convertible and High Income Fund  $ 3,960,000   1.1%   0   ** 
                 
CALAMOS High Yield Fund - CALAMOS Investment
     Trust
  
$

  630,000

 

*

  0   ** 
                 
CALAMOS Strategic Total Return Fund  $ 10,151,000   2.7%   0   ** 
                 
City of Knoxville Pension System  $ 80,000   *   0   ** 
                 
Cowen & Company, LLC  $ 3,000,000   *   0   ** 
                 
Credit Suisse Securities LLC  $ 4,000,000   1.1%   0   ** 
                 

 



                 
DBAG London $ 45,893,000   12.2%   0   **
                 
Fidelity Financial Trust: Fidelity Convertible Securities
     Fund
$ 10,000,000   2.7%   0   **
                 
JPMorgan Securities Inc $ 2,000,000   *   0   **
                 
Meriter Health Services Inc. Employee Retirement Plan $ 30,000   *   0   **
                 
Municipal Employees Benefit Trust $ 130,000   *   0   **
                 
Oakwood Assurance Company Ltd. $ 10,000   *   0   **
                 
Oakwood Healthcare Inc. Funded Depreciation $ 30,000   *   0   **
                 
Oakwood Healthcare Inc. Pension $ 60,000   *   0   **
                 
Plexus Fund Limited $ 5,000,000   1.3%   0   **
                 
Prisma Foundation $ 20,000   *   0   **
                 
Radcliffe SPC, Ltd for and on behalf of the Class A
     Convertible Crossover Segregated Portfolio
$ 20,500,000   5.5%   0   **
                 
SCI Endowment Care Common Trust Fund - National
     Fiduciary Services
$ 60,000   *   0   **
                 
SCI Endowment Care Common Trust Fund - SunTrust
     Bank
$ 20,000   *   0   **
                 
The California Wellness Foundation $ 160,000   *   0   **
                 
UBS AG LONDON FBO: WCBP $ 5,000,000   1.3%   0   **
                 
United Food and Commercial Workers Local 1262 and
    
Employers Pension Trust
$ 110,000   *   0   **
 
*    Less than one percent of the notes outstanding.             
**    The number of shares of common stock offered hereby is calculable based on the conversion rate applicable to the notes at a point in time and is presently equivalent to 42.2052 shares of common stock per $1,000 principal amount of notes and a cash payment in lieu of any fractional share.
   

        Investing in the notes and the underlying shares of common stock involves significant risks. See “Risk Factors” beginning on page 2 of the prospectus.

        Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the accuracy or adequacy of this prospectus supplement or the prospectus. Any representation to the contrary is a criminal offense.

The date of this prospectus supplement is August 4, 2006.