Mercedes GL-Class (2014) is 2451 mm (96.50 inch) longer, 335 mm (13.19 inch) wider, 295 mm (11.61 inch) higher and has 490 liters (17.30 ft3) bigger cargo space than Smart Fortwo (2016).
Smart Fortwo (2016) is 1630 kg (3,594 lbs) lighter than Mercedes GL-Class (2014).