UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 AMENDMENT NO. 1 UNITED AUTO GROUP, INC. (Name of Issuer) COMMON SHARES (PAR VALUE $0.0001 PER SHARE) (Title of Class of Securities) 909440 10 9 (CUSIP Number) MR. MUNEMASA IZUMI, GENERAL MANAGER FIRST BUSINESS DEPARTMENT FIRST MOTOR VEHICLES DIVISION MOTOR VEHICLES, MARINE & AEROSPACE BUSINESS UNIT MITSUI & CO., LTD. 2-1 OHTEMACHI 1-CHOME, CHIYODA-KU TOKYO, JAPAN (PHONE) + 81-3-3285-4289 MR. SHIGEO ENOMOTO, GENERAL MANAGER DETROIT MACHINERY & AUTOMOTIVE DEPARTMENT SECOND MACHINERY DIVISION MITSUI & CO. (U.S.A.), INC. DETROIT OFFICE 1000 TOWN CENTER, SUITE 1900 SOUTHFIELD, MI 48075 (PHONE) 248-948-4171 (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) Copy to: WILLIAM D. REGNER, ESQ. DEBEVOISE & PLIMPTON 919 THIRD AVENUE NEW YORK, NY 10022 (212) 909-6000 APRIL 24, 2003 (Date of Event which Requires Filing Statement on Schedule 13D) 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 Sections 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box [ ]. 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 purposes 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). (Continued on following pages) 2 SCHEDULE 13D CUSIP NO. 909440 10 9 (1) NAME OF REPORTING PERSON Mitsui & Co., Ltd. S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON 98-0110185 -------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (A) [ ] (B) [ ] -------------------------------------------------------------------------------- (3) SEC USE ONLY -------------------------------------------------------------------------------- (4) SOURCE OF FUNDS WC -------------------------------------------------------------------------------- (5) CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D) OR 2(E) -------------------------------------------------------------------------------- (6) CITIZENSHIP OR PLACE OF ORGANIZATION Japan -------------------------------------------------------------------------------- NUMBER OF SHARES (7) SOLE VOTING POWER BENEFICIALLY OWNED 0 BY EACH REPORTING ----------------------------------------------------------- PERSON WITH (8) SHARED VOTING POWER 3,170,349 ----------------------------------------------------------- (9) SOLE DISPOSITIVE POWER 0 ----------------------------------------------------------- (10) SHARED DISPOSITIVE POWER 3,170,349 -------------------------------------------------------------------------------- (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,170,349 -------------------------------------------------------------------------------- (12) CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES -------------------------------------------------------------------------------- (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 8.2% -------------------------------------------------------------------------------- (14) TYPE OF REPORTING PERSON CO -------------------------------------------------------------------------------- 3 CUSIP NO. 909440 10 9 (1) NAME OF REPORTING PERSON Mitsui & Co. (U.S.A.), Inc. S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON 13-2559853 -------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (A) [ ] (B) [ ] -------------------------------------------------------------------------------- (3) SEC USE ONLY -------------------------------------------------------------------------------- (4) SOURCE OF FUNDS WC -------------------------------------------------------------------------------- (5) CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D) OR 2(E) -------------------------------------------------------------------------------- (6) CITIZENSHIP OR PLACE OF ORGANIZATION New York -------------------------------------------------------------------------------- NUMBER OF SHARES (7) SOLE VOTING POWER BENEFICIALLY OWNED 0 BY EACH REPORTING ----------------------------------------------------------- PERSON WITH (8) SHARED VOTING POWER 3,170,349 ----------------------------------------------------------- (9) SOLE DISPOSITIVE POWER 0 ----------------------------------------------------------- (10) SHARED DISPOSITIVE POWER 3,170,349 -------------------------------------------------------------------------------- (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,170,349 -------------------------------------------------------------------------------- (12) CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES -------------------------------------------------------------------------------- (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 8.2% -------------------------------------------------------------------------------- (14) TYPE OF REPORTING PERSON CO -------------------------------------------------------------------------------- 4 This Amendment No. 1 ("Amendment No. 1") amends and supplements the statement on Schedule 13D (the "Statement") initially filed by the Reporting Persons on April 11, 2003. Information reported in the Statement remains in effect except to the extent that it is amended, restated or superseded by information contained in this Amendment No. 1. Capitalized terms used and not defined in this Amendment No. 1 shall have the meanings set forth in the Statement. ITEM 2. IDENTITY AND BACKGROUND Item 2 of the Statement is hereby amended and supplemented as follows: Information with respect to the directors and executive officers of the Reporting Persons set forth in Annex A to the Statement is hereby amended and restated in its entirety as set forth in Annex A to this Amendment No. 1, and is incorporated herein by reference. ITEM 4. PURPOSE OF TRANSACTION Item 4 of the Statement is hereby amended and supplemented as follows: On April 24, 2003, Mitsui Japan and Mitsui USA completed the acquisition of 1,291,766 shares of Common Stock and 322, 942 shares of Common Stock, respectively, in accordance with the terms of the Purchase Agreement, dated April 4, 2003, with J.P. Morgan Partners (BHCA), L.P. 5 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. Dated: April 25, 2003 MITSUI & CO., LTD. By: /s/ Munemasa Izumi ----------------------- Name: Munemasa Izumi Title: General Manager First Business Department First Motor Vehicles Division MITSUI & CO. (U.S.A.), INC. By: /s/ Osamu Koyama ----------------------- Name: Osamu Koyama Title: S.V.P. and General Manager Second Machinery Division 6 ANNEX A Unless otherwise indicated, the business address of the directors and executive officers of Mitsui Japan is 2-1 Ohtemachi, 1-Chome, Chiyoda-Ku, Tokyo, Japan and the business address of the directors and executive officers of Mitsui USA is 200 Park Avenue, New York, NY 10166-0130. Each occupation set forth opposite such person's name refers to employment with the Reporting Persons. To the Reporting Persons' knowledge, none of the Reporting Persons' directors or executive officers has been convicted in a criminal proceeding (excluding traffic violations and similar misdemeanors) or was or is subject to a civil judgment of the type described in clauses (d) or (e) of Item 2 of the Statement. Unless otherwise indicated, each of the directors and officers of the Reporting Persons is a citizen of Japan. Directors and Executive Officers of Mitsui Japan Number of Shares of Occupation and Common Stock Name Business Address Beneficially Owned ---- ---------------- ------------------ Nobuo Ohashi Chairman and Executive Director -- Shoei Utsuda President and Chief Executive Officer -- Retsu Imaizumi Executive Director -- Hiroshi Nagata Executive Vice President -- Kazumi Nakagawa Executive Vice President -- Norio Shoji (1) Executive Vice President -- Tasuku Kondo Senior Executive Managing Officer -- Katsuto Momii (2) Senior Executive Managing Officer -- Tetsuya Matsuoka Senior Executive Managing Officer -- Yasuo Hayashi Senior Executive Managing Officer -- Masataka Suzuki Senior Executive Managing Officer -- Toshihiko Sarahira Executive Managing Officer -- Gempachiro Aihara (3) Executive Managing Officer -- Yushi Nagata Executive Managing Officer -- Jun Moriyama Executive Managing Officer -- Hiroshi Tada (4) Executive Managing Officer -- Motokazu Yoshida Executive Managing Officer -- Yoshiyuki Kagawa Executive Managing Officer -- (1) Business address is 20 Old Bailey, London EC4M 7QQ, United Kingdom. (2) Business address is 200 Park Avenue, New York, NY 10166-0130. (3) Business address is Units 06-09, 33rd Floor, CWTC Tower 1, 1 Jianguomenwai Street Beijing 100004, China. (4) Business address is 200 Park Avenue, New York, NY 10166-0130. 7 Directors and Executive Officers of Mitsui USA Number of Shares of Occupation and Common Stock Name Business Address Beneficially Owned ---- ---------------- ------------------ Hiroshi Tada President & Chief Executive Officer (director) -- Shogo Suzuki Senior Vice President (director) -- Masatoshi Shimada Senior Vice President & Chief Financial Officer -- (director) Junsaku Kitamura Senior Vice President (director) -- Masahiko Tsumoto Senior Vice President -- Mitsuo Matsuura Senior Vice President -- Kimiharu Okura Senior Vice President -- Mitsuo Nagahara Senior Vice President -- Yoshinori Ishida Senior Vice President -- Shigeo Toyama Senior Vice President -- Toru Nakajima Senior Vice President & Chief Information Officer -- Osamu Koyama Senior Vice President (1) -- Yoshiyasu Maruoka Senior Vice President (2) -- Mamoru Mizushima Senior Vice President (3) -- Noriyuki Sato Senior Vice President (4) -- Kazutoshi Muramatsu Senior Vice President (5) -- Osamu Toriumi Corporate Secretary -- (1) Business address is 200 East Randolph Drive, Suite 5200, Chicago, IL 60601-7125. (2) Business address is 1000 Louisiana, Suite 5700, Houston, TX 77002-5092. (3) Business address is 601 South Figueroa Street, Suite 1900, Los Angeles, CA 90017. (4) Business address is 1001 Fourth Avenue Plaza, Suite 3950, Seattle, WA 98154-1196. (5) Business address is 750 17th Street, Suite 400, N.W., Washington, D.C. 20006. 8