Audi A8 (2016) is 660 mm (25.98 inch) longer, 270 mm (10.63 inch) higher and has 361 liters (12.75 ft3) bigger cargo space than McLaren 650S Coupe (2015).
McLaren 650S Coupe (2015) is 148 mm (5.83 inch) wider and 549 kg (1,210 lbs) lighter than Audi A8 (2016).