Audi S6 (2016) is 685 kg (1,510 lbs) lighter than Mercedes GL-Class (2015).
Mercedes GL-Class (2015) is 215 mm (8.46 inch) longer, 124 mm (4.88 inch) wider, 410 mm (16.14 inch) higher and has 281 liters (9.92 ft3) bigger cargo space than Audi S6 (2016).