Audi A8 (2018) is 734 kg (1,618 lbs) lighter than GMC Sierra 2500HD (2019).
GMC Sierra 2500HD (2019) is 528 mm (20.79 inch) longer, 90 mm (3.54 inch) wider, 503 mm (19.80 inch) higher and has 1222 liters (43.15 ft3) bigger cargo space than Audi A8 (2018).
