BMW 8 Series (G14) (2018) is 159 mm (6.26 inch) longer and 125 mm (4.92 inch) higher than McLaren GT (2020).
McLaren GT (2020) is 193 mm (7.60 inch) wider, 352 kg (776 lbs) lighter and has 70 liters (2.47 ft3) bigger cargo space than BMW 8 Series (G14) (2018).