[1ntCobra]

I agree that ethanol is a joke, however I read some where (perhaps Road & Track) that scientists are working on the next generation of bio-fuels where they are engineering bacteria(?) that will digest biological matter into a fuel compatible with gasoline that will not require vehicle modifications like ethanol does.

Ron, you mentioned something about reaching the limits of battery technology, but I remember reading something else where nano-technology had the potential of increasing battery capacity greatly.

So perhaps there still is hope for bio-fuels and electric cars...