GMC Sierra All Terrain HD concept debuts at 2011 Detroit Auto Show

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Ford's Raptor is the undisputed king of production off-road truck awesomeness, but it may soon have a challenger, previewed here with the GMC Sierra All Terrain HD Concept. Bigger, diesel-powered, and suitably brutish, the All Terrain HD is at this point, "strictly a concept," however.

According to Lisa Hutchinson, GMC product marketing director, the truck isn't aimed at Baja-style high-speed duty like the Raptor, but rather towing and hauling in harsh offroad environments--it's still a Sierra HD, but with a dirtier side. That's still an impressive mix for a 397-horsepower, 765 pound-foot turbodiesel V-8 capable of towing 13,000 pounds and carrying 2,700 pounds in its bed.

The All Terrain HD is able to do all of this thanks to added off-road features including a wider 73-inch track, three more inches of ground clearance, custom suspension control arms, remote-reservoir Fox off-road shocks, electronic front stabilizer bar disconnect, full composite underbody protection, and 35-inch-tall BF Goodrich MK2 mud tires on 20-inch aluminum wheels.

As noted earlier, though, you shouldn't get your hopes up: you won't likely be buying one of these, ever. "Although it is strictly a concept, it is a pretty realistic one," said Hutchinson.

 
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