Detroit 2011: GMC Sierra All Terrain HD Concept Eats Raptors for Lunch

Colum Wood
by Colum Wood

Compared to the Ford Raptor, the GMC Sierra All Terrain HD Concept is a T-Rex. Based on GM’s new Heavy Duty platform, this truck is in a whole other segment than the Raptor and was never meant to be a Baja machine.

Unfortunately, this is just a concept and GMC execs aren’t commenting on production possibilities. What’s more likely is that some of the design cues featured here will trickle down to the standard truck. With tight budgets during the recession, GMC opted to spend all their cash on a new frame and new engine. As a result, the truck is a dud in the looks department. It certainly won’t be, however, once some of this truck’s styling has been adapted.

Combining the standard Crew Cab with the 5′ 8″ box currently not offered on HD models, the All Terrain concept then gets a special front end with a massive front grille, custom matte-chrome accenting and LED lighting. A two-inch lift is also part of the package, with Fox Shox and custom control arms. To help the truck’s off-road capability, it has sculpted front end to deliver a maximum approach angle and the side steps that are retractable as well. In addition, the entire undercarriage is coated in a special hard composite for maximum durability.

Custom 20-inch 8-lug wheels give a real rig look to the diesel monster, as do flared fenders that house a two-inch wider track. Those 20s also help give excellent AWD capability when matched with a set of 35-inch-tall BFGoodrich KM2 “mud terrain” tires.

Under the hood continues to be GMC’s new 6.6-liter Duramax diesel V8 making 397-hp and 765 ft-lbs of torque.

Check out all the pics in the gallery below and see more 2011 Detroit Auto Show coverage here.

GALLERY: GMC Sierra All Terrain HD Concept Debut

Read AutoGuide’s Review of the 2011 GMC Sierra HD Here

Colum Wood
Colum Wood

With AutoGuide from its launch, Colum previously acted as Editor-in-Chief of Modified Luxury & Exotics magazine where he became a certifiable car snob driving supercars like the Koenigsegg CCX and racing down the autobahn in anything over 500 hp. Find Colum on <a href="">Twitter.</a>

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  • Stephen Marcus Colmar Stephen Marcus Colmar on Nov 27, 2012

    my dream truck!

  • Manuel Avila Manuel Avila on Aug 30, 2013

    This truck better come out how it is like this. If not ima have to switch to ford. The desel engine is bad ass on a off road truck and the body just can't get any better I love this truck and ima buy one when it comes out.