GM EN-V urban mobility concept vehicle during the 2011 International Consumer Electronics Show (CES) in Las Vegas

The wheel of a General Motors Co. (GM) EN-V urban mobility concept vehicle is displayed during the 2011 International Consumer Electronics Show (CES) in Las Vegas, Nevada, U.S., on Saturday, Jan. 8, 2011. The 2011 CES tradeshow features 2,500 global technology companies presenting consumer tech products and is expected to draw over 100,000 attendees.

Thomas Brown of General Motors Co. (GM), right, demonstrates a GM EN-V urban mobility concept vehicle during the 2011 International Consumer Electronics Show (CES) in Las Vegas, Nevada, U.S., on Saturday, Jan. 8, 2011. The 2011 CES tradeshow features 2,500 global technology companies presenting consumer tech products and is expected to draw over 100,000 attendees

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