Brazil's sugar crop fuels nation's cars.

“More than 80% of new cars now sold in Brazil are equipped to use ethanol as well as gasoline. Both fuels are available almost everywhere, and since ethanol can cost about a third less than petrol per litre at the moment (though the mileage is not quite as good), the home grown fuel is more popular than the foreign import.” It’s not just home grown, but distilled from a previously untapped waste product — what’s left after sugarcane is refined into sugar.