Mercedes C-Class (2015) is 25 mm (0.98 inch) higher, 369 kg (814 lbs) lighter and has 35 liters (1.24 ft3) bigger cargo space than Porsche Panamera (2016).
Porsche Panamera (2016) is 328 mm (12.91 inch) longer and 120 mm (4.72 inch) wider than Mercedes C-Class (2015).