Audi A8 (2015) is 689 kg (1,519 lbs) lighter than GMC Sierra 3500HD (2016).
GMC Sierra 3500HD (2016) is 435 mm (17.13 inch) longer, 86 mm (3.39 inch) wider, 480 mm (18.90 inch) higher and has 1501 liters (53.01 ft3) bigger cargo space than Audi A8 (2015).
