Mercedes CL-Class (2014) is 265 mm (10.43 inch) longer and 44 mm (1.73 inch) wider than Peugeot 508 SW (2017).
Peugeot 508 SW (2017) is 70 mm (2.76 inch) higher, 645 kg (1,422 lbs) lighter and has 40 liters (1.41 ft3) bigger cargo space than Mercedes CL-Class (2014).