GMC Sierra 2500HD (2016) is 1153 mm (45.39 inch) longer, 96 mm (3.78 inch) wider, 687 mm (27.05 inch) higher and has 1368 liters (48.31 ft3) bigger cargo space than Mercedes AMG GT (2014).
Mercedes AMG GT (2014) is 1318 kg (2,906 lbs) lighter than GMC Sierra 2500HD (2016).