DETROIT - JANUARY 10: Head of Mercedes-Benz Dr. Dieter Zetsche introduces the SLS AMG E-Cell car during the press preview of the North American International Auto Show at the Cobo Center on January ... more 
DETROIT - JANUARY 10: Head of Mercedes-Benz Dr. Dieter Zetsche introduces the SLS AMG E-Cell car during the press preview of the North American International Auto Show at the Cobo Center on January 10, 2011 in Detroit, Michigan. The show opened for media previews today and is open to the general public January 15-23. (Photo by Scott Olson/Getty Images) less 
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Getty Images | Photo By Scott Olson / Getty Images
Wed, Jan 12, 2011 2:34 AM EST