Audi S6 (2018) is 819 kg (1,806 lbs) lighter than GMC Sierra 3500HD (2017).
GMC Sierra 3500HD (2017) is 768 mm (30.24 inch) longer, 161 mm (6.34 inch) wider, 537 mm (21.14 inch) higher and has 1592 liters (56.22 ft3) bigger cargo space than Audi S6 (2018).
