BMW 8 Series (G15) (2020) is 99 mm (3.90 inch) longer, 146 mm (5.75 inch) higher and has 420 liters (14.83 ft3) bigger cargo space than McLaren Senna (2018).
McLaren Senna (2018) is 56 mm (2.20 inch) wider and 450 kg (992 lbs) lighter than BMW 8 Series (G15) (2020).