COMERICA BANK LOWERS PRIME RATE

DALLAS/September 18, 2007 -- Comerica Bank announced it will lower its prime rate to 7.75 percent from 8.25 percent effective today, September 18, 2007.

Comerica Bank is a subsidiary of Comerica Incorporated, 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.

Media Contact:
Wayne Mielke
(214) 462-4463

Investor Contacts:
Darlene Persons
(313) 222-2840

Paul Jaremski
(214) 969-6476