Ford Mustang (2014) is 891 kg (1,964 lbs) lighter than GMC Sierra 3500HD (2015).
GMC Sierra 3500HD (2015) is 916 mm (36.06 inch) longer, 119 mm (4.69 inch) wider, 557 mm (21.93 inch) higher and has 1667 liters (58.87 ft3) bigger cargo space than Ford Mustang (2014).