We take a look at the just unveiled 2015 GMC Yukon Denali and Yukon XL, and drive the Sierra Denali with the new Ecotec3 6.2-liter engine.
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GMC has introduced a mobile app for the Apple iPhone and other Android phones enabling users to shop, research, and configure a GMC vehicle.
We've already sampled the 2014 Chevrolet Silverado, but its upmarket twin, the 2014 GMC Sierra made its official debut today.
When a new pickup truck debuted, did you ever wonder how its competitors would suddenly gain a few hundred pounds of towing capacity with seemingly no changes from the previous model year?