The majority of people are aware of natural gas as an alternative fuel however, not much talk is given to alcohol as a major fuel source Most of us think alcohol is can only be made with the food we eat like corn however, even seaweed is able to be made into alcohol. And the major benefit is there are no major modifications that need to be done to cars. The only thing needed is a calibration change to the air to fuel ratio since the octane of alcohol is alot higher than our normal gas. The real question is why alcohol continues to be ignored after all some of the same American cars we have in the states are in Brazil and they are capable of running on alcohol, gas or any combination of the two. So why doesn't that happen in the states. As a guy who use to race cars alcohol is definitely something that can be done now.
Yes alcohol can be a gas
and here are a couple of interesting energy documentaries
everyone should have an interest in.