GM reveals GMC Sierra All Terrain HD concept prior to 2011 NAIAS

In an unusual move, GM has preempted media days by revealing its GMC concept weeks before the start of this year’s North American International Auto Show. Its news release of the GMC Sierra All Terrain HD concept says it is an exploration of heavy-duty truck capability combined with greater off-road versatility.

One look at the photo provided by media.gm.com and you immediately see 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. Moreover, large fender flares stretch away from the body to cover the 35-inch-tall BFGoodrich tires.

According to the release, 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 body dimensions, including increased ground clearance and wider track, as well as greater approach/departure angles, deliver off-road capability while maintaining HD levels of payload and trailering capacity.

http://media.gm.com/content/media/us/en/news/news_detail.brand_gm.html/content/Pages/news/us/en/2011/Jan/11naias/gmc/1216_sierra_hdat

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