DALLAS, Sept. 17 /PRNewswire-FirstCall/ -- Comerica Incorporated (NYSE: CMA) will announce its third quarter 2007 earnings prior to the market opening on Wednesday, October 17, 2007.

(Logo: http://www.newscom.com/cgi-bin/prnh/20010807/CMALOGO )

Comerica will host a conference call to review third quarter 2007 financial results at 7 a.m. CDT Wednesday, October 17, 2007. Interested parties may access the conference call by calling (800) 309-2262 or (706) 679- 5261 (event ID No. 17469032). The call also will be accessible on the Internet at http://www.comerica.com/. A telephone replay of the conference call will be available approximately two hours following the call through October 31, 2007. The conference call replay can be accessed by calling (800) 642-1687 or (706) 645-9291 (event ID No. 17469032). The replay also will be accessible via Comerica's "Investor Relations" page at http://www.comerica.com/.

Comerica Incorporated is a financial services company strategically aligned by three business segments: The Business Bank, The Retail Bank, and Wealth & Institutional Management. Comerica focuses on relationships, and helping people and businesses be successful. Comerica Bank locations can be found in Michigan, California, Texas, Arizona and Florida, with select businesses operating in several other states, and Canada and Mexico. Comerica reported total assets of $58.6 billion at June 30, 2007. To receive e-mail alerts of breaking Comerica news, go to http://www.comerica.com/newsalerts.

SOURCE: Comerica Incorporated

CONTACT: Media, Wayne Mielke, +1-214-462-4463, or Investors, Darlene
Persons, +1-313-222-2840, or Paul Jaremski, +1-214-969-6476, all of Comerica
Incorporated

Web site: http://www.comerica.com/