While the Detroit Auto Show is just a few weeks away, General Motors has decided to offer us a few hints on what the company will be offering, and the first details revealed are on the GMC Sierra All Terrain HD Concept.
Based on the Sierra HD , the Sierra All Terrain HD concept is shorter, wider, and taller than the original. It features a unique five-foot, eight-inch Crew Cab/short box body configuration that supports a wheels-at-the-corners proportion. Its exterior design is accentuated by a large, airflow-optimized grille, streamlined bumpers, large fender flares, LED lights, smooth-appearance front marker lamps integrated behind the top edge of the windshield glass, and 20-inch aluminum wheels wrapped in 35-inch-tall BFGoodrich tires.
Under the hood GMC has placed a 6.6L Duramax turbo-diesel V-8 engine that delivers a total of 397 HP and 765 lb.-ft. of torque. The engine is mated to an Allison 1000 six-speed automatic transmission.
UPDATE 01/06/2011: News images for the 2011 GMC Sierra All Terrain HD concept have been revealed. These images feature more shots of the exterior and even a couple highlighting the interior of GM’s modified heavy duty truck. Check them out in the gallery provided!
Press release after the jump.