DETROIT - JANUARY 8:  In this photo provided by General Motors, General Motors Vice Chairman Bob Lutz poses in front of the GM headquarters with both the North American Car and Truck of the Year, the Saturn Aura and Chevrolet Silverado, completing a General Motors sweep of the awards at the North American International Auto show January 8, 2007 in Detroit, Michigan. The show draws nearly 7,000 members of the news media from around the world and opens to the public January 13. Getty Images logo Getty Images 62 months ago

DETROIT - JANUARY 8: In this photo provided by General Motors, General Motors Vice Chairman Bob Lutz poses in front of the GM headquarters with both the North American Car and Truck of the Year, the Saturn Aura and Chevrolet Silverado, completing a General Motors sweep of the awards at the North American International Auto show January 8, 2007 in Detroit, Michigan. The show draws nearly 7,000 members of the news media from around the world and opens to the public January 13.