2014 GMC Sierra offers more elegance, comfort than its Chevy Silverado twin What's the difference between a new Chevrolet Silverado and the equally new 2014 GMC Sierra? Their buyers. Under the steel skin, General Motors' full-size pickups are dizygotic twins: Same DNA but not identical in appearance or appeal. They have the same new frame, modernized mechanicals and electronics, and the same new and more fuel-efficient engines.
July 18, 2013 - Detroit News