Home2011 Detroit Auto Show
Consumer Reports auto experts report from the 2011 North American Auto Show in Detroit.
GMC Sierra All Terrain HD
What is it? Like the Ford Raptor and Dodge Ram Power Wagon, the GMC Sierra All Terrain HD combines a heavy-duty truck with off-road capabilities. It underpins the All Terrain HD concept with some modificationsa raised 4WD chassis and the 6.6-liter Duramax diesel V8 with Allison 1000 six-speed transmission combined to put out 397 hp.

Height has been increased three inches to provide better clearance and features a wider 73-inch track, but it is shorter in length than production Sierra HD models. Chunky 20-inch wheels are wrapped in 35-inch tall tires and Fox off-road shocks help performance on rough terrain. Payload capacity is 2,700 lbs and towing capacity 13,000 lbs.

Inside is a new navigation radio with an 80-gig hard drive and map data for navigation. It also has a time lapse playback similar to a DVR that allows you to play back music from traditional radio or satellite.

Consumer Reports New cars: A to Z

Back to main page