2014 GMC Sierra 1500 The gentleman's pickup. - Car and Driver

Maybe that’s why GM attaches big Chevrolet and GMC badges on its pickup-truck twins, the Silverado and the Sierra. The Chevy Silverado and GMC Sierra aren’t quite identical, but engines, transmissions, chassis, and most of the sheetmetal are shared. The Sierra replaces the Silverado’s stacked headlights with simpler, classier-looking small projector-beam units that are accented with LEDs on the top-dog SLT trim level. The grille, the front bumpers, the fenders, and the aluminum hood are unique to the Sierra. Black plastic trim around the fender wells and a chrome accent along the base of the side windows are more Sierra tells. Aside from the GMC badging, the interior décor of the Sierra is, again, nearly identical to that of the bow-tie truck. Aluminum trim on all versions of the Sierra replaces what’s silver-colored in the Silverado, and wood accents are peppered throughout the top-spec SLT interiors. Direct-Injected V-8. With those few differences, it’s not surprising that the Sierra acts just like the Silverado. In two-wheel-drive guise, the Sierra V-8 returns an EPA-estimated 16 city mpg and 23 highway. Source: www.caranddriver.com