BMW 3 Series Touring (2015) is 223 mm (8.78 inch) longer, 18 kg (40 lbs) lighter and has 60 liters (2.12 ft3) bigger cargo space than Mercedes GLA-Class (2018).
Mercedes GLA-Class (2018) is 23 mm (0.91 inch) wider and 182 mm (7.17 inch) higher than BMW 3 Series Touring (2015).