BMW 5 Series Gran Turismo (2018) is 519 mm (20.43 inch) longer, 63 mm (2.48 inch) wider and has 109 liters (3.85 ft3) bigger cargo space than Mercedes GLA-Class (2016).
Mercedes GLA-Class (2016) is 26 mm (1.02 inch) higher and 304 kg (670 lbs) lighter than BMW 5 Series Gran Turismo (2018).