BMW X6 (2018) is 411 mm (16.18 inch) longer, 499 mm (19.65 inch) higher and has 436 liters (15.40 ft3) bigger cargo space than McLaren 650S Coupe (2015).
McLaren 650S Coupe (2015) is 104 mm (4.09 inch) wider and 612 kg (1,349 lbs) lighter than BMW X6 (2018).