Cadillac CTS-V Coupe (2014) is 462 mm (18.19 inch) longer and 142 mm (5.59 inch) wider than Subaru Impreza GP (2015).
Subaru Impreza GP (2015) is 48 mm (1.89 inch) higher, 535 kg (1,179 lbs) lighter and has 88 liters (3.11 ft3) bigger cargo space than Cadillac CTS-V Coupe (2014).