Donald N. Frey, Designer of the Mustang, Dies at 86
By DOUGLAS MARTIN
Published: March 28, 2010

Donald N. Frey, the engineer who spearheaded the design and development of the Mustang, the spunky, stylish, affordably priced “pony car” that the Ford Motor Company rolled out in the mid-1960s in one of the most successful car introductions in automotive history, died March 5 in Evanston, Ill., where he lived. He was 86.