McLaren 650S Coupe (2015) is 119 mm (4.69 inch) longer and 307 mm (12.09 inch) wider than Mercedes B-Class (2017).
Mercedes B-Class (2017) is 354 mm (13.94 inch) higher, 73 kg (161 lbs) lighter and has 342 liters (12.08 ft3) bigger cargo space than McLaren 650S Coupe (2015).
