BMW 8 Series (G15) (2019) is 361 kg (796 lbs) lighter than Porsche Cayenne (2018).
Porsche Cayenne (2018) is 12 mm (0.47 inch) longer, 52 mm (2.05 inch) wider, 347 mm (13.66 inch) higher and has 250 liters (8.83 ft3) bigger cargo space than BMW 8 Series (G15) (2019).