Ford Mustang (2020) is 792 kg (1,746 lbs) lighter than GMC Sierra 2500HD (2018).
GMC Sierra 2500HD (2018) is 911 mm (35.87 inch) longer, 120 mm (4.72 inch) wider, 580 mm (22.83 inch) higher and has 1386 liters (48.95 ft3) bigger cargo space than Ford Mustang (2020).