Ford F-450 (2018) is 980 mm (38.58 inch) longer, 401 mm (15.79 inch) wider, 48 mm (1.89 inch) higher and has 471 liters (16.63 ft3) bigger cargo space than GMC Sierra 2500HD (2018).
GMC Sierra 2500HD (2018) is 63 kg (139 lbs) lighter than Ford F-450 (2018).