Audi S4 (2017) is 19 mm (0.75 inch) higher, 151 kg (333 lbs) lighter and has 36 liters (1.27 ft3) bigger cargo space than BMW 6 Series Gran Coupe (2018).
BMW 6 Series Gran Coupe (2018) is 264 mm (10.39 inch) longer and 53 mm (2.09 inch) wider than Audi S4 (2017).
Size difference at a glance
Audi S4 (2017) is 5.3% shorter than BMW 6 Series Gran Coupe (2018).
Audi S4 (2017) is 2.8% narrower than BMW 6 Series Gran Coupe (2018).
Audi S4 (2017) is 1.4% taller than BMW 6 Series Gran Coupe (2018).
Audi S4 (2017) is 7.9% lighter than BMW 6 Series Gran Coupe (2018).
Audi S4 (2017) is 7.8% larger in cargo space than BMW 6 Series Gran Coupe (2018).
Overall footprint
BMW 6 Series Gran Coupe (2018) has a 7.9% smaller overall footprint (length × width).
