BMW 8 Series (G14) (2020) is 150 mm (5.91 inch) longer and 125 mm (4.92 inch) higher than McLaren GT (2020).
McLaren GT (2020) is 193 mm (7.60 inch) wider, 362 kg (798 lbs) lighter and has 70 liters (2.47 ft3) bigger cargo space than BMW 8 Series (G14) (2020).