BMW 6 Series Gran Turismo (2020) is 578 mm (22.76 inch) longer, 336 mm (13.23 inch) higher and has 465 liters (16.42 ft3) bigger cargo space than McLaren 650S Coupe (2015).
McLaren 650S Coupe (2015) is 191 mm (7.52 inch) wider and 327 kg (721 lbs) lighter than BMW 6 Series Gran Turismo (2020).