GMC is trying to strike a balance between the Ford Raptor and Dodge PowerWagon with the Sierra All Terrain HD concept truck.

Via pickuptrucks.com:

Could GMC add a halo off-road truck to its full-size pickup lineup? The diesel-powered GMC Sierra All Terrain Heavy Duty Concept — which will debut next month at the 2011 Detroit auto show — points to how the “professional grade” brand thinks it might deliver a credible competitor to the Ford F-150 SVT Raptor and the Ram 2500 Power Wagon in the current or next-generation Sierra HD.

The light-duty Raptor and heavy-duty Power Wagon are two of the most capable off-road pickup trucks ever to jump or climb off the showroom floor. We love both because these purpose-built rigs can go places and do things off pavement that would kill lesser trucks within yards of the trailhead. The Raptor flies across the desert at high speed, like a Baja trophy truck, while the Power Wagon can rock crawl over the toughest terrain you’ll find in Moab.

But these traits make an apples-to-apples comparison of the trucks difficult because their off-road strengths lie at opposite ends of the wheeling spectrum. This is where GMC smells opportunity.

The truck is only a concept. With that being said, it looks very close to a production vehicle.

Pick Up Truck.com estimates the price tag for Diesel version of the concept around $65K and a gas version of the truck in the $50K vicinity.