BMW 5 Series (2018) is 88 mm (3.46 inch) longer and 470 kg (1,036 lbs) lighter than Porsche Cayenne (2020).
Porsche Cayenne (2020) is 87 mm (3.43 inch) wider, 189 mm (7.44 inch) higher and has 101 liters (3.57 ft3) bigger cargo space than BMW 5 Series (2018).