Mercedes B-Class (2020) is 1724 mm (67.87 inch) longer, 133 mm (5.24 inch) wider, 7 mm (0.28 inch) higher and has 215 liters (7.59 ft3) bigger cargo space than Smart Fortwo (2018).
Smart Fortwo (2018) is 675 kg (1,488 lbs) lighter than Mercedes B-Class (2020).
