BMW 2 Series (2017) is 22 mm (0.87 inch) longer and 148 kg (326 lbs) lighter than Mercedes GLA-Class (2018).
Mercedes GLA-Class (2018) is 60 mm (2.36 inch) wider, 193 mm (7.60 inch) higher and has 45 liters (1.59 ft3) bigger cargo space than BMW 2 Series (2017).