BMW 5 Series (2015) is 497 mm (19.57 inch) longer, 25 mm (0.98 inch) wider and has 125 liters (4.41 ft3) bigger cargo space than Mercedes GLA-Class (2018).
Mercedes GLA-Class (2018) is 148 mm (5.83 inch) higher and 277 kg (611 lbs) lighter than BMW 5 Series (2015).