GMC officially unveiled the 2015 Sierra All Terrain HD. The model, which in essence a package on the 2500 HD and 3500 HD, features chrome decorations, protective part for the floor made of aluminum, “All Terrain” logos and exclusive for the edition 18 inch alloy wheels. The car also has bumpers in body color, LED daytime running lights and chrome mirror caps. To justify its name, the All Terrain HD, has been equipped with the Z71 Off Road package, which includes hill descent control and Rancho twin-tube shock absorbers.
GMC has one photo of the interior released but says that the cabin has “a theme inspired by carbon fiber “, especially the sills and of course the IntelliLink infotainment system.
The 2015 GMC Sierra All Terrain HD is equipped with a 6 liter straight Vortec V8 engine that delivers 322 hp and 515 Nm of torque. If that is not enough, the All Terrain HD can be equipped with a 6.6 liter Durama xV8 diesel that produces 397 hp and 1.037 Nm of torque.
