Audi A8 (2014) is 729 kg (1,607 lbs) lighter than GMC Sierra 3500HD (2017).
GMC Sierra 3500HD (2017) is 562 mm (22.13 inch) longer, 87 mm (3.43 inch) wider, 517 mm (20.35 inch) higher and has 1617 liters (57.10 ft3) bigger cargo space than Audi A8 (2014).
