BMW 4 Series (2014) is 126 mm (4.96 inch) longer, 159 mm (6.26 inch) higher and has 301 liters (10.63 ft3) bigger cargo space than McLaren 650S Coupe (2015).
McLaren 650S Coupe (2015) is 268 mm (10.55 inch) wider and 117 kg (258 lbs) lighter than BMW 4 Series (2014).