Audi A8 (2015) is 705 kg (1,554 lbs) lighter than GMC Sierra 3500HD (2018).
GMC Sierra 3500HD (2018) is 434 mm (17.09 inch) longer, 86 mm (3.39 inch) wider, 506 mm (19.92 inch) higher and has 1501 liters (53.01 ft3) bigger cargo space than Audi A8 (2015).
