BMW 5 Series Gran Turismo (2020) 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 16 mm (0.63 inch) higher and 350 kg (772 lbs) lighter than BMW 5 Series Gran Turismo (2020).