BMW 4 Series (2020) is 620 kg (1,367 lbs) lighter than Mercedes CL-Class (2018).
Mercedes CL-Class (2018) is 327 mm (12.87 inch) longer, 20 mm (0.79 inch) wider, 34 mm (1.34 inch) higher and has 50 liters (1.77 ft3) bigger cargo space than BMW 4 Series (2020).