Did you notice on the left of the page the "cast your vote" bit regarding hybrid cars and the multiple choice options?

There's no option I would wish to vote for without knowing the answer to the question below.

Are CO2 emissions reduced by running your car on elecricity generated by a power station compared with running your car on petrol?

I've no idea, but I'd love to know the answer before I consider voting.

This looks useful as it compares the sources of electricity.

http://www.paulchefurka.ca/Electric%20Cars%20and%20CO2.html

Ta for pointing me in the right direction.

It seems that, at the moment, there is little to choose between all electric and petrol driven, but cars like the little Citroen C1 seem to generate less CO2 than an all electric. Still, if you use green leccy, the electric car wins hands down. The voting question was about hybrids, so muddying the waters still further.

(thank you to whoever fixed my careless spelling mistake)