Audi A8 (2015) is 753 mm (29.65 inch) longer, 268 mm (10.55 inch) higher and has 346 liters (12.22 ft3) bigger cargo space than McLaren 650S Coupe (2015).
McLaren 650S Coupe (2015) is 144 mm (5.67 inch) wider and 542 kg (1,195 lbs) lighter than Audi A8 (2015).