Audi S6 (2016) is 385 mm (15.16 inch) longer, 252 mm (9.92 inch) higher and has 204 liters (7.20 ft3) bigger cargo space than McLaren 675LT Coupe (2016).
McLaren 675LT Coupe (2016) is 221 mm (8.70 inch) wider and 537 kg (1,184 lbs) lighter than Audi S6 (2016).