Buick Regal (2017) is 56 mm (2.20 inch) higher and 545 kg (1,202 lbs) lighter than Mercedes CL-Class (2014).
Mercedes CL-Class (2014) is 264 mm (10.39 inch) longer, 15 mm (0.59 inch) wider and has 88 liters (3.11 ft3) bigger cargo space than Buick Regal (2017).