"Ethanol is made by fermenting and then distilling starch and sugar crops -- maize, sorghum, potatoes, wheat, sugar-cane, even cornstalks, fruit and vegetable waste."
I think a lot of S. American nations will use (some already used) Ethanol. due to there large maize and sugar-cane plantations...
Disclaimer: Alcohol is for those who could afford to lose some valuable brain cells.