Audi S4 (2015) is 204 mm (8.03 inch) longer, 203 mm (7.99 inch) higher and has 336 liters (11.87 ft3) bigger cargo space than McLaren 650S Coupe (2015).
McLaren 650S Coupe (2015) is 267 mm (10.51 inch) wider and 237 kg (522 lbs) lighter than Audi S4 (2015).