BMW 8 Series (G15) (2019) is 631 kg (1,391 lbs) lighter than BMW X7 (2018).
BMW X7 (2018) is 308 mm (12.13 inch) longer, 98 mm (3.86 inch) wider, 464 mm (18.27 inch) higher and has 330 liters (11.65 ft3) bigger cargo space than BMW 8 Series (G15) (2019).