McLaren 650S Coupe (2015) is 196 mm (7.72 inch) wider and 482 kg (1,063 lbs) lighter than Mercedes S-Class Coupe (2015).
Mercedes S-Class Coupe (2015) is 514 mm (20.24 inch) longer, 211 mm (8.31 inch) higher and has 256 liters (9.04 ft3) bigger cargo space than McLaren 650S Coupe (2015).