Mercedes G-Class (2017) is 1017 mm (40.04 inch) longer, 461 mm (18.15 inch) higher and has 100 liters (3.53 ft3) bigger cargo space than Opel Adam (2014).
Opel Adam (2014) is 129 mm (5.08 inch) wider and 1509 kg (3,327 lbs) lighter than Mercedes G-Class (2017).