Detroit Auto Show 2010

The Mercedes-Benz E 350 convertible is displayed at the North American International Auto Show Monday, Jan. 11, 2010 in Detroit.

The Cadillac XTS Platinum concept car is introduced at the North American International Auto Show Tuesday, Jan. 12, 2010, in Detroit.

A Subaru Hybrid Tourer concept car is shown at the North American International Auto Show Tuesday, Jan. 12, 2010, in Detroit.

A 2011 Lincoln MKX is introduced at the North American International Auto Show on Tuesday, Jan. 12, 2010, in Detroit.

The Hyundai Blue-Will concept car is shown at the North American International Auto Show Monday, Jan. 11, 2010 in Detroit.

The Chevrolet Aveo RS is introduced at the North American International Auto Show on Monday, Jan. 11, 2010, in Detroit.

The Toyota FT-CH compact hybrid concept car is introduced at the North American International Auto Show in Detroit on Jan. 11, 2010. Asia automakers have grabbed their biggest chunk ever of the U.S. car and truck market and hope to build on that momentum in 2010 with their "green" car offerings.

The Audi A8 is introduced at the North American International Auto Show on Monday, Jan. 11, 2010, in Detroit.

Honda Motor Co. President & CEO Takanobu Ito and Executive Vice President of American Honda Motor Co. John Mendel pose in front of 2011 Honda CR-Z at the North American International Auto Show on Monday, Jan. 11, 2010, in Detroit.

A 2011 Ford Fiesta is displayed at the North American International Auto Show on Monday, Jan. 11, 2010, in Detroit.

A Bentley Mulsanne is shown at the North American International Auto Show on Monday, Jan. 11, 2010, in Detroit.

Brian Sweeney, Buick GMC general manager, and Jim Federico, global chief engineer of Buick Regal, right, introduce 2011 GMC Acadia Denali, left, GMC Granite concept truck, and 2011 Buick Regal GS at the North American International Auto Show on Monday, Jan. 11, 2010, in Detroit.

Jim Federico, global chief engineer of Buick Regal, introduces 2011 Buick Regal GS at the North American International Auto Show on Monday, Jan. 11, 2010, in Detroit.

The GMC Granite concept truck is introduced at the North American International Auto Show on Monday, Jan. 11, 2010, in Detroit.

Ford Motor Co. CEO Alan Mulally, left, and Ford Motor Co. Executive Chairman William Ford Jr., pose next to the next-generation Ford Focus 5-door at the North American International Auto Show on Monday, Jan. 11, 2010, in Detroit.

The next generation Ford Focus 4-door is introduced at the North American International Auto Show on Monday, Jan. 11, 2010, in Detroit.