The smart fortwo cdi remains the most environmentally-friendly cars with a combustion engine as it now emits just 86g/km of CO2.
The diesel model - the smart fortwo cdi - always underlined this claim with carbon dioxide emissions of just 88g/km.
Now the smart fortwo is setting a new record with emissions of just 86g/km and fuel consumption of 85.6 mpg (combined cycle) in the manual “softip” mode which means that it keeps its title of CO2 champion.
The smart engineers have been able to improve the smart fortwo cdi's fuel consumption and CO2 emissions by improving the vehicle’s aerodynamics. A reduction in ride height by seven millimetres, for example, resulted in improved rolling resistance characteristics.