Mercedes GL-Class (2020) is 132 mm (5.20 inch) longer, 68 mm (2.68 inch) wider, 433 mm (17.05 inch) higher and has 235 liters (8.30 ft3) bigger cargo space than Porsche Panamera (2016).
Porsche Panamera (2016) is 766 kg (1,689 lbs) lighter than Mercedes GL-Class (2020).