Audi A8 (2018) is 752 kg (1,658 lbs) lighter than GMC Sierra 2500HD (2020).
GMC Sierra 2500HD (2020) is 810 mm (31.89 inch) longer, 133 mm (5.24 inch) wider, 551 mm (21.69 inch) higher and has 1222 liters (43.15 ft3) bigger cargo space than Audi A8 (2018).
