Mercedes S-Class Coupe (2017) is 773 mm (30.43 inch) longer and 93 mm (3.66 inch) wider than Peugeot 308 (2015).
Peugeot 308 (2015) is 43 mm (1.69 inch) higher, 630 kg (1,389 lbs) lighter and has 70 liters (2.47 ft3) bigger cargo space than Mercedes S-Class Coupe (2017).