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2011 GMC Sierra All Terrain HD

At a Glance

Drive Types 4WD
Engines 6.6l V8 T D
Transmissions A6

Official Word:

The GMC Sierra All Terrain HD concept is an exploration of heavy-duty truck capability combined with greater off-road versatility. It is highlighted by a bold exterior design, enhanced all-terrain suspension and premium details expected of a GMC - all designed to enable greater access to off-road destinations. The new 2011 Sierra HD underpins the All Terrain HD concept, with a modified, production-based 4WD chassis and the Duramax diesel/Allison 1000 six-speed powertrain. The enhanced suspension and unique...Read.

Model/Trim/Package Engine MPG VjI Base Price
Sierra All Terrain HD 6.6l V8 T D (397-bhp) A6 4WD TBD