here in Brazil there are many cars running on ethanol. In the 80's and early 90's (gulf war) those cars were almost 80% of all the cars around here. Lately, the Flex engine (you can use gas or alchool at your choice, even mixed) has becoming a major point at selling cars. About 60% already on the new cars produced.
As said before, the ethanol is more corrosive than gas so, a few things in the car must be changed. Another drawback is, in the cold you car would need to stay on heating a few minutes before running, or you would be jerking all around
It burns faster than gas but it's a little stronger (around 2-6 hp for each 100). And alot less pollutive. 👍 It comes from the sugar plant (forgot the translation

). There's plenty around here, plenty!
But since last year, when the price was around R$0.90 cents to R$1,10 it grew to R$ 1,50 and R$1,60. Why?
Commodity they say. Because it uses 15% gas, when the gas price go up, so does alchool prices. Pure capitalism.. It's questionable if really a car running only ethanol worth the buy.