McLaren 650S Coupe (2015) is 283 mm (11.14 inch) wider than Mercedes C-Class (2015).
Mercedes C-Class (2015) is 174 mm (6.85 inch) longer, 239 mm (9.41 inch) higher, 23 kg (51 lbs) lighter and has 336 liters (11.87 ft3) bigger cargo space than McLaren 650S Coupe (2015).