When I was in Brazil in '05 visiting the in-laws we got to visit a Kachasa plant/distillery in Vitoria, near Receife in NE Brazil.
Since the whole north east of Brazil is covered with acres and acres of Sugar Cane, they have seen fit to run cars in Brazil on the stuff, or drink it for years now.
They have "flex" cars that start up on gas, then switch over to alcohol, or cars designed to run on straight alcohol with no gas needed.
I'm running on alcohol now too, since I got my new still. Sugar cane is perfect for making ethanol, because you don't have to convert the starch in something like corn, to sugar, by boiling it for a few hours at 172 degrees, before yeast can ferment the wort into alcohol.
Sugar Cane is full of natural unrefined sugar, that all they have to do is put in a press, and squirt out sugar cane juice, throw it in fermenter (with air lock so it doesn't turn to vinegar) and in a couple of weeks you have a 12 to 18% wash of alcohol that can be triple distilled into 50% alcohol (200 proof).
Then they have two oulet pipes in the distillery, one goes to the bottling plant for the Kaschasa, and one goes to the tanker trucks for the Ethanol stations run by the govt. Brazil is self sufficient energy wise now, no more need for foreign earl.