2011 GMC Sierra All Terrain HD Concept - more pics

GM will debut the Sierra concept at the Detroit auto show next week. The Sierra All Terrain HD Concept is shorter, wider and taller than the production Sierra upon which it is based.

Source: http://feeds.worldcarfans.com/~r/worldcarfans/Jxfz/~3/wIyLe80bWY4/2011-gmc-sierra-all-terrain-hd-concept---more-pics

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