Converting your Car from Gasoline to Ethanol

Alcoholcanbegas
I just ran across some information on running your vehicle on Ethanol as opposed to gasoline. I can definitely understand and appreciate the desire to save money and reduce one's carbon footprint. However, prior to jumping on the bandwagon, one needs to realise the energy required to distill Ethanol. I do not know the numbers, or how they compare to the environmental cost of refining oil into gasoline but this should be an interesting development. If nothing else, at least the air around the cities will be a little cleaner.