Mercedes GLA-Class (2017) is 94 mm (3.70 inch) wider, 141 mm (5.55 inch) higher and has 50 liters (1.77 ft3) bigger cargo space than Subaru Impreza GP (2014).
Subaru Impreza GP (2014) is 5 mm (0.20 inch) longer and 168 kg (370 lbs) lighter than Mercedes GLA-Class (2017).