BMW 1 Series (2014) is 720 kg (1,587 lbs) lighter than Mercedes CL-Class (2014).
Mercedes CL-Class (2014) is 735 mm (28.94 inch) longer, 124 mm (4.88 inch) wider, 6 mm (0.24 inch) higher and has 130 liters (4.59 ft3) bigger cargo space than BMW 1 Series (2014).