Superior Industries International, Inc. (NYSE: SUP), the largest manufacturer of aluminum wheels for passenger cars and light-duty vehicles in North America, today announced that it has filed definitive proxy materials with the Securities and Exchange Commission in connection with its 2014 Annual Meeting of Shareholders to be held on Friday, August 15, 2014, at 10 a.m., Pacific time. The record date for determining those shareholders eligible to receive notice of, and to vote at, the 2014 Annual Meeting is June 26, 2014. GAMCO Asset Management, Inc. has indicated that it intends to conduct a proxy contest and seek the election at the 2014 Annual Meeting of three director candidates in opposition to the highly qualified and experienced nominees unanimously recommended by the Superior Board. Superior strongly urges shareholders to vote only the WHITE proxy card, either by telephone, Internet or mail, and discard any blue proxy card they may receive from GAMCO. Shareholders may also vote at the meeting, which will take place at the Airtel Plaza Hotel, 7277 Valjean Avenue, Van Nuys, California. In conjunction with the mailing of its definitive proxy materials, Superior also mailed the following letter to shareholders: July 8, 2014 Dear Fellow Shareholder: Enclosed you will find Superior’s proxy materials for the 2014 Annual Meeting of Shareholders of Superior Industries International, Inc., to be held on Friday, August 15, 2014. Please vote TODAY by telephone, Internet or by signing, dating and returning the enclosed WHITE proxy card in the postage-paid envelope provided. GAMCO IS ONCE AGAIN PROCEEDING WITH A NEEDLESS, COSTLY AND DISTRACTING PROXY CONTEST AND HAS NOT PROVIDED ANY PROPOSAL TO ENHANCE SUPERIOR’S PROSPECTS Once again, GAMCO Asset Management Inc. is waging another needless, costly and distracting proxy contest to elect its own director candidates to your Board, despite the failure of a similar attempt last year. As was the case last year, GAMCO has not shared with management or your Board an alternative strategic plan or any specific ideas for improving Superior’s prospects or enhancing shareholder value other than a Dutch auction tender offer of at least $40 million, which it has withdrawn.