Mercedes CLS-Class (2015) is 190 mm (7.48 inch) longer, 62 mm (2.44 inch) wider and has 65 liters (2.30 ft3) bigger cargo space than Peugeot 408 (2020).
Peugeot 408 (2020) is 71 mm (2.80 inch) higher and 355 kg (783 lbs) lighter than Mercedes CLS-Class (2015).