BMW 5 Series Gran Turismo (2015) is 256 mm (10.08 inch) longer, 80 mm (3.15 inch) wider, 71 mm (2.80 inch) higher and has 45 liters (1.59 ft3) bigger cargo space than Peugeot 408 (2017).
Peugeot 408 (2017) is 710 kg (1,565 lbs) lighter than BMW 5 Series Gran Turismo (2015).