Audi Q8 (2018) is 104 mm (4.09 inch) longer, 145 mm (5.71 inch) wider, 213 mm (8.39 inch) higher and has 194 liters (6.85 ft3) bigger cargo space than Mercedes E-Class (Estate) (2017).
Mercedes E-Class (Estate) (2017) is 264 kg (582 lbs) lighter than Audi Q8 (2018).