BMW 8 Series (G14) (2018) is 334 mm (13.15 inch) longer, 140 mm (5.51 inch) higher and has 206 liters (7.27 ft3) bigger cargo space than McLaren MP4-12C (2019).
McLaren MP4-12C (2019) is 6 mm (0.24 inch) wider and 622 kg (1,371 lbs) lighter than BMW 8 Series (G14) (2018).