Mercedes CLA-Class (2016) is 20 mm (0.79 inch) higher, 284 kg (626 lbs) lighter and has 25 liters (0.88 ft3) bigger cargo space than Porsche Panamera (2014).
Porsche Panamera (2014) is 340 mm (13.39 inch) longer and 153 mm (6.02 inch) wider than Mercedes CLA-Class (2016).