2012 GMC Sierra All Terrain HD Concept
Despite everything you've read, there is still a market for big, expensive
lifestyle pickup trucks. So GMC is tackling the Ford SVT Raptor/ Dodge
Power Wagon market with its own kind of executive off-roader, the Sierra
All Terrain Concept. Unlike the Raptor, it's based on the Sierra 2500 HD.
And keep in mind that at this point, it's only a concept. In fact, just as the
Ford Super Chief concept hinted about the look of the latest F-150, the
Sierra All Terrain hints at the next 1500 Sierra, due in the '13 model year.