BMW 3 Series (2015) is 12 mm (0.47 inch) higher and 655 kg (1,444 lbs) lighter than Mercedes CL-Class (2018).
Mercedes CL-Class (2018) is 471 mm (18.54 inch) longer, 62 mm (2.44 inch) wider and has 10 liters (0.35 ft3) bigger cargo space than BMW 3 Series (2015).