BMW 6 Series Gran Turismo (2018) is 260 mm (10.24 inch) longer, 74 mm (2.91 inch) wider, 52 mm (2.05 inch) higher and has 79 liters (2.79 ft3) bigger cargo space than Peugeot 508 (2017).
Peugeot 508 (2017) is 220 kg (485 lbs) lighter than BMW 6 Series Gran Turismo (2018).