BMW 3 Series Touring (2018) is 431 kg (950 lbs) lighter than Porsche Cayenne (2014).
Porsche Cayenne (2014) is 212 mm (8.35 inch) longer, 143 mm (5.63 inch) wider, 259 mm (10.20 inch) higher and has 175 liters (6.18 ft3) bigger cargo space than BMW 3 Series Touring (2018).