$4000 to buy an Electric Vehicle

I really wonder, once you factor in what it takes to make the electricity, what the real carbon footprint is for one of these?
I suspect that a hybrid works better, clean gas is better than coal.
Edit:
At least that is what I suspect. I don't think it is so easy.
Still better than an all gas guzzler though.

[smurfalicious]

I really wonder, once you factor in what it takes to make the electricity, what the real carbon footprint is for one of these?

I can't recall where I read about it... will have to research this... but I do recall reading that the problem with these allegedly e-friendlier vehicles is that they need a battery to house the electricity, and that it is far more cumbersome on the environment to deal with the exhausted batteries, than fossil fuels are.