GMC is getting its heavy-duty trucks ready for the mud this summer with its All Terrain package for the Sierra 2500HD and 3500HD. Meant to blend style, tech and ruggedness, the pack includes a lot of ...
Buick GMC's Vice President of Marketing, John Schwegman, discusses the inspiration for the new GMC Sierra All Terrain HD concept vehicle. Although GMC heavy-duty models have already received accolades ...
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