Mercedes E-Class (2014) is 49 mm (1.93 inch) longer, 26 mm (1.02 inch) wider and has 10 liters (0.35 ft3) bigger cargo space than Peugeot 508 SW (2017).
Peugeot 508 SW (2017) is 44 mm (1.73 inch) higher and 305 kg (672 lbs) lighter than Mercedes E-Class (2014).