BMW 4 Series (2016) is 2003 mm (78.86 inch) longer, 207 mm (8.15 inch) wider and has 255 liters (9.01 ft3) bigger cargo space than Smart Fortwo (2018).
Smart Fortwo (2018) is 172 mm (6.77 inch) higher and 635 kg (1,400 lbs) lighter than BMW 4 Series (2016).
