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The Chevrolet Silverado HD is the 2011 Motor Trend Truck of the Year, completing a rare same-year sweep of the prestigious car and truck awards.

On the outside, the 2011 Chevrolet Silverado HD appears to have been given a subtle makeover, but it's what's under the skin that makes this truck a winner, says Motor Trend Editor-in-Chief Angus MacKenzie. Chevy engineers focused on three key areas powertrain, frame, and suspension to deliver a truck with significantly improved capability and more refinement.

The new 2011 Silverado HD features a new frame and suspension designs, and a more powerful Duramax diesel engine with 397 horsepower, 765 lb.-ft. of torque, and 11 percent better fuel-economy.  As a result, it is capable of towing up to 21,700 pounds, or carrying 6,635 pounds of payload. The new Silverado HD also offers available confidence- and control-related features specifically for towing including electronic trailer sway control, hill start assist and smart exhaust brake system.

?With more capability and technology than ever before, we believe the Chevrolet Silverado HD sets the bar for heavy-duty trucks, says GM CEO Dan Akerson. It's a great honour to have such a respected authority as Motor Trend agree.