Ford Mustang (2018) is 374 mm (14.72 inch) longer and 175 mm (6.89 inch) wider than Subaru Impreza GP (2015).
Subaru Impreza GP (2015) is 74 mm (2.91 inch) higher, 417 kg (919 lbs) lighter and has 53 liters (1.87 ft3) bigger cargo space than Ford Mustang (2018).