Audi A3 Sportback (2017) is 640 kg (1,411 lbs) lighter than Audi S6 (2018).
Audi S6 (2018) is 618 mm (24.33 inch) longer, 89 mm (3.50 inch) wider, 14 mm (0.55 inch) higher and has 19 liters (0.67 ft3) bigger cargo space than Audi A3 Sportback (2017).
