Mercedes GLA-Class (2017) is 194 mm (7.64 inch) higher and 251 kg (553 lbs) lighter than Porsche Panamera (2016).
Porsche Panamera (2016) is 604 mm (23.78 inch) longer, 96 mm (3.78 inch) wider and has 10 liters (0.35 ft3) bigger cargo space than Mercedes GLA-Class (2017).