Mercedes GLK-Class (2018) is 12 mm (0.47 inch) wider and 212 mm (8.35 inch) higher than Peugeot 508 (2017).
Peugeot 508 (2017) is 294 mm (11.57 inch) longer, 305 kg (672 lbs) lighter and has 80 liters (2.83 ft3) bigger cargo space than Mercedes GLK-Class (2018).