Cadillac XTS (2014) is 37 mm (1.46 inch) longer, 84 mm (3.31 inch) higher, 408 kg (899 lbs) lighter and has 19 liters (0.67 ft3) bigger cargo space than Mercedes CL-Class (2014).
Mercedes CL-Class (2014) is 21 mm (0.83 inch) wider than Cadillac XTS (2014).