BMW 8 Series (G14) (2018) is 377 kg (831 lbs) lighter than Tesla Model X (2017).
Tesla Model X (2017) is 193 mm (7.60 inch) longer, 97 mm (3.82 inch) wider, 345 mm (13.58 inch) higher and has 600 liters (21.19 ft3) bigger cargo space than BMW 8 Series (G14) (2018).