News Releases

Comerica Quarterly Earnings and Conference Call April 20

DETROIT, March 21 /PRNewswire-FirstCall/ -- Comerica Incorporated
(NYSE: CMA) will announce its first quarter 2005 earnings prior to the market
opening on Wednesday, April 20, 2005.
(Logo: http://www.newscom.com/cgi-bin/prnh/20010807/CMALOGO )
Comerica will host a conference call to review first quarter 2005
financial results at 8 a.m. ET Wednesday, April 20, 2005. Interested parties
may access the conference call by calling (706) 679-5261 (event ID No.
4976890). The call also will be accessible on the Internet at
http://www.comerica.com . A replay of the conference call will be available
approximately two hours following the call through Friday, May 20, 2005. The
conference call replay can be accessed by calling (800) 642-1687 or
(706) 645-9291 (event ID No. 4976890). The replay also will be accessible via
Comerica's "Investor Relations" page at http://www.comerica.com .
Comerica Incorporated is a financial services company headquartered in
Detroit, strategically aligned into the Business Bank, Small Business &
Personal Financial Services, and Wealth & Institutional Management. Comerica
focuses on relationships, and helping businesses and people be successful.
Comerica reported total assets of $51.8 billion at December 31, 2004. To
receive e-mail alerts of breaking Comerica news, go to
http://www.comerica.com/newsalerts .

SOURCE Comerica Incorporated
CONTACT: Media Contacts: Sharon McMurray, 1-313-222-4881, or Wayne
Mielke, 1-313-222-4732, Investor Contacts: Helen Arsenault, 1-313-222-2840,
or Paul Jaremski, 1-313-222-6317, all of Comerica Incorporated