Mercedes GLA-Class (2020) is 56 mm (2.20 inch) wider, 156 mm (6.14 inch) higher and has 87 liters (3.07 ft3) bigger cargo space than Subaru Impreza GT (2018).
Subaru Impreza GT (2018) is 215 mm (8.46 inch) longer and 343 kg (756 lbs) lighter than Mercedes GLA-Class (2020).