BMW 5 Series Gran Turismo (2018) is 313 mm (12.32 inch) longer, 89 mm (3.50 inch) wider, 30 mm (1.18 inch) higher and has 60 liters (2.12 ft3) bigger cargo space than Mercedes CLA-Class (2017).
Mercedes CLA-Class (2017) is 214 kg (472 lbs) lighter than BMW 5 Series Gran Turismo (2018).