Mercedes B-Class (2017) is 790 kg (1,742 lbs) lighter than Porsche Cayenne (2019).
Porsche Cayenne (2019) is 462 mm (18.19 inch) longer, 168 mm (6.61 inch) wider, 131 mm (5.16 inch) higher and has 184 liters (6.50 ft3) bigger cargo space than Mercedes B-Class (2017).