Audi S6 (2017) is 419 mm (16.50 inch) longer, 237 mm (9.33 inch) higher and has 255 liters (9.01 ft3) bigger cargo space than McLaren 650S Coupe (2015).
McLaren 650S Coupe (2015) is 219 mm (8.62 inch) wider and 427 kg (941 lbs) lighter than Audi S6 (2017).