Audi A8 (2014) is 595 kg (1,312 lbs) lighter than Mercedes GL-Class (2020).
Mercedes GL-Class (2020) is 9 mm (0.35 inch) longer, 50 mm (1.97 inch) wider, 390 mm (15.35 inch) higher and has 306 liters (10.81 ft3) bigger cargo space than Audi A8 (2014).