The point is there 's an order to follow. There's no point to move to electricity if electricity is made from coal.
Removing coal from electricity production would have a much more bigger impact than changing all cars to IEC cars.
Coal is used more and more to producing electricity. Nowadays, more IEC cars means more coal burnt. It's a nonsense.
less CO2 is produced per km driven, even if the source of an electric cars' electricity is a combined-cycle oil or gas-burning plant.
Please share your sources to illustrate that, with taking into account the CO2 produced to replace a still-working car by a IEC one.