BMW 5 Series Gran Turismo (2018) is 46 mm (1.81 inch) higher, 115 kg (254 lbs) lighter and has 32 liters (1.13 ft3) bigger cargo space than Porsche Panamera (2020).
Porsche Panamera (2020) is 107 mm (4.21 inch) longer and 71 mm (2.80 inch) wider than BMW 5 Series Gran Turismo (2018).