BMW 1 Series (2015) is 805 kg (1,775 lbs) lighter than Porsche Cayenne (2018).
Porsche Cayenne (2018) is 526 mm (20.71 inch) longer, 189 mm (7.44 inch) wider, 267 mm (10.51 inch) higher and has 310 liters (10.95 ft3) bigger cargo space than BMW 1 Series (2015).