DETROIT/Jan. 2, 2003 -- Comerica Incorporated (NYSE: CMA) today named Jon W. Bilstrom as its head of Governance and Regulatory Affairs. The announcement was made by Ralph W. Babb Jr., chairman, president and chief executive officer.

As executive vice president, Governance and Regulatory Affairs, Bilstrom will be responsible for Comerica's relationships with all of its regulatory agencies, and help ensure compliance with Securities and Exchange Commission, Sarbanes-Oxley Act and New York Stock Exchange governance rules, among other related responsibilities.

Bilstrom, 56, joins Comerica Jan. 2, 2003, from The Bar Plan Mutual Insurance Company, of St. Louis, Mo., where he had served as president and chief executive officer. Previously, he served for nearly nine years as General Counsel and Secretary to the board of directors at Mercantile Bancorporation, also of St. Louis. He has extensive in-house and large-firm experience in the areas of corporate securities law, mergers and acquisitions, governmental regulation, commercial finance, litigation management and board of directors governance.

Bilstrom will become a member of Comerica's Management Policy Committee and Management Council.

A U.S. Army veteran, Bilstrom earned the Purple Heart and other combat decorations for his distinguished military service while in Vietnam. He holds both a juris doctor degree and a bachelor of science degree from the University of Iowa.

Comerica Incorporated (NYSE: CMA) is a financial services company focused on business banking and asset gathering. Through its more than 500 customer-service locations, including branch, lending and investment offices, Comerica helps businesses and people be successful. Comerica is ideally positioned to deliver high quality financial services in Michigan, California and Texas, as well as in Florida, numerous other states, Canada and Mexico. Comerica has an investment services affiliate, Munder Capital Management, one of the largest money managers worldwide. Comerica reported total assets of $53 billion at September 30, 2002.

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