Peugeot 508 SW (2016) is 415 mm (16.34 inch) longer, 88 mm (3.46 inch) wider, 17 mm (0.67 inch) higher and has 145 liters (5.12 ft3) bigger cargo space than Subaru Impreza GP (2015).
Subaru Impreza GP (2015) is 180 kg (397 lbs) lighter than Peugeot 508 SW (2016).