A new navigation radio is also featured on the Sierra All Terrain HD concept and previews future radios to be offered in GMC vehicles. An integrated 80-gig hard drive contains map data for the ...

GMC introduced the 2015 Sierra All Terrain HD on Thursday with limited changes ahead of an expected on-sale date sometime this summer. A 6.0-liter V8 will continue to be the standard engine making ...

Unveiled in Texas, the new 2017 GMC Sierra 2500 HD All Terrain X is the most off-road capable truck in the Sierra HD lineup and is the third model in GMC’s limited edition All Terrain X series.

Exclusively available as a Crew Cab with four-wheel-drive, the All Terrain X will go on sale at GMC dealers in the United States of America this fall. “The new Sierra HD All Terrain X’s ...

However, that’s not the only big news for the 2017 GMC Sierra HD model. Joining the Sierra 1500 and Canyon, the All Terrain X series gets rounded out with the addition of the trim on the Sierra ...

BFGoodrich has reimagined its flagship all-terrain tire. Say goodbye to the KO2 ... Raptor (LT285/70R17), the 2024 Chevy Silverado HD, and the GMC Sierra HD (LT275/65R20). From the soggy backwoods ...