BMW 5 Series (2016) is 322 mm (12.68 inch) longer than Peugeot 308 SW (2017).
Peugeot 308 SW (2017) is 4 mm (0.16 inch) wider, 9 mm (0.35 inch) higher, 490 kg (1,080 lbs) lighter and has 48 liters (1.70 ft3) bigger cargo space than BMW 5 Series (2016).