GMC has introduced a mobile app for the Apple iPhone and other Android phones enabling users to shop, research, and configure a GMC vehicle.
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Over the past decade or so, the big three truck makers (Ford, Chevrolet, and Chrysler) have seen towing capacity skyrocket to never-before-seen levels.
General Motors is leaner and meaner, but is it greener?
We've already sampled the 2014 Chevrolet Silverado, but its upmarket twin, the 2014 GMC Sierra made its official debut today.