Mary Barra speaks during the final press preview day for the North American International Auto Show in Detroit, January 10, 2012.
{"Image ImageDescription": "Mary Barra speaks during the final press preview day for the North American International Auto Show in Detroit, Michigan, in this January 10, 2012 file picture. General Motors Co on December 10, 2013 said Chief Executive Dan Akerson will step down next month and be replaced by Mary Barra, the company's global product development chief, marking the first time a major U.S. automaker has been led by a woman. REUTERS/Mike Cassese/Files (UNITED STATES  - Tags: TRANSPORT BUSINESS)", "Image Artist": "MIKE CASSESE"}