Smart Fortwo is between 2500 mm (98.43 in.) and 2740 mm (107.87 in.) long, 1515 mm (59.65 in.) and 1664 mm (65.51 in.) wide, and 1542 mm (60.71 in.) and 1565 mm (61.61 in.) tall.
Curb weight of Smart Fortwo is between 750 kg (1653.47 lbs.) and 1040 kg (2292.81 lbs.) and gross – between 990 kg (2182.58 lbs.) and 1225 kg (2700.66 lbs.).
The highest top speed in the range is 165 km/h (102.53 mph), delivered by the 2016 Smart Fortwo III coupe/ cabrio Brabus 0.9 (109 Hp) Twinamic.
There are several fully-electric variants available in the third generation of the Smart Fortwo range.
Smart Fortwo vehicles, being microcars, are quite efficient, with consumption figures (for internal combustion engine variants) being between 3.3 l/100 km (71.28 mpg) (2007 Smart Fortwo II coupe 0.8 cdi (45 Hp)) and 5.3 l/100 km (44.38 mpg) (1999 Smart Fortwo Coupe 0.7i Brabus (75 Hp)).
Fuel tank capacity of Smart Fortwo can be 28 l (7.4 gal), 33 l (8.72 gal), or 35 l (9.25 gal), depending on the modification.