The first offering of the exclusive Denali line on a heavy-duty GMC pickup has been introduced today by GMC. The 2011 Sierra Denali HD is the top-of-the-range version of a redesigned lineup of 2011 Sierra 2500HD and 3500HD trucks that are set to go on sale in early summer.
The Sierra Denali HD comes on the 2500HD chassis, in a 4WD crew cab standard box configuration. The vehicle is equipped with a standard Vortec 6.0L gas V-8/six-speed automatic powertrain, but there is also a new Duramax 6.6… (read more)