Quote Originally Posted by damian View Post
Alcohol has a much lower energy density than petrol or diesel and you have to process (distill) it. If you want to go down that route a hectare of oil palms will yield about enough biodiesel to run a car and with very little post processing. Just harvest, crush, small chemical modification and drop it in your tank. Much less work than distilling.
This might work in Australia, ~50 million hectares of arable land and only 16 million vehicles, but Brazil with 60 million hectares of arable has 50 million cars. While a country like the USA has 242 million vehicles and only 174 million hectares of land. The same is the case for just about any biofuel.