Mercedes C-Class (Coupe) (2017) is 271 mm (10.67 inch) longer and 70 mm (2.76 inch) wider than Subaru Impreza GP (2016).
Subaru Impreza GP (2016) is 61 mm (2.40 inch) higher, 155 kg (342 lbs) lighter and has 29 liters (1.02 ft3) bigger cargo space than Mercedes C-Class (Coupe) (2017).