Mercedes GLA-Class (2016) is 790 kg (1,742 lbs) lighter than Porsche Cayenne (2017).
Porsche Cayenne (2017) is 431 mm (16.97 inch) longer, 150 mm (5.91 inch) wider, 194 mm (7.64 inch) higher and has 249 liters (8.79 ft3) bigger cargo space than Mercedes GLA-Class (2016).