The range of electric cars is very small. Ideal in towns where there are pollution problems, but not suitable for longer journeys. From what I have seen of the hybrid cars, the battery means they have reduced luggage space.
We have said that when my car dies we will get an electric car, but the amount of energy embedded in acquiring the raw materials and building the electric car needs to be taken into account in working out their efficiency so, currently it is probably more energy efficient to keep my 13 year old, light use car on the road.
Do not forget the emissions from the power stations making the electricity and energy embedded in the wind turbines and solar arrays.