On the other hand, the Brasilian methods you talk of, are user freindly, because the fuel systems in their cars are designed / modified to take it. They can extract ethanol from the vast quantities of sugar cane with relative ease. Where as we follow US fuel standards (because we are sheep) and for yanks to get the same amount of ethanol from their primary source (maize / corn) it takes more energy to grow & harvest the crop than is produced in the ethanol.
As the world tosses up whether or not to 'go electric' on the roads (for the last 60 years) we could have been using 100% ethanol from viable sources around the world (proving automotive standards were up to it) but as with most oil companies.... the cleaner alternative sort of "disappeared"
There endeth todays ethanol lesson
