Audi A6 Avant (2017) is 100 mm (3.94 inch) longer, 120 mm (4.72 inch) higher, 234 kg (516 lbs) lighter and has 145 liters (5.12 ft3) bigger cargo space than BMW 8 Series (G15) (2018).
BMW 8 Series (G15) (2018) is 27 mm (1.06 inch) wider than Audi A6 Avant (2017).
