Mercedes G-Class (2020) is 971 mm (38.23 inch) longer, 211 mm (8.31 inch) wider, 485 mm (19.09 inch) higher and has 280 liters (9.89 ft3) bigger cargo space than Opel Adam (2015).
Opel Adam (2015) is 1382 kg (3,047 lbs) lighter than Mercedes G-Class (2020).