BMW 8 Series (G15) (2020) is 334 mm (13.15 inch) longer, 142 mm (5.59 inch) higher and has 276 liters (9.75 ft3) bigger cargo space than McLaren MP4-12C (2019).
McLaren MP4-12C (2019) is 6 mm (0.24 inch) wider and 523 kg (1,153 lbs) lighter than BMW 8 Series (G15) (2020).