Mercedes CLS-Class (2017) is 525 mm (20.67 inch) longer, 142 mm (5.59 inch) wider and has 135 liters (4.77 ft3) bigger cargo space than Subaru Impreza GP (2016).
Subaru Impreza GP (2016) is 53 mm (2.09 inch) higher and 380 kg (838 lbs) lighter than Mercedes CLS-Class (2017).