BMW 4 Series Gran Coupe (2018) is 8 mm (0.31 inch) longer, 48 mm (1.89 inch) wider and has 11 liters (0.39 ft3) bigger cargo space than Mercedes CLA-Class (2014).
Mercedes CLA-Class (2014) is 49 mm (1.93 inch) higher and 327 kg (721 lbs) lighter than BMW 4 Series Gran Coupe (2018).