GMC Sierra 3500HD (2014) is 1283 mm (50.51 inch) longer, 93 mm (3.66 inch) wider, 690 mm (27.17 inch) higher and has 1641 liters (57.95 ft3) bigger cargo space than Mercedes AMG GT (2019).
Mercedes AMG GT (2019) is 974 kg (2,147 lbs) lighter than GMC Sierra 3500HD (2014).