Citroen C4 (2014) is 49 mm (1.93 inch) wider, 19 mm (0.75 inch) higher, 115 kg (254 lbs) lighter and has 23 liters (0.81 ft3) bigger cargo space than Subaru Impreza GP (2014).
Subaru Impreza GP (2014) is 86 mm (3.39 inch) longer than Citroen C4 (2014).