I was recently reading that modern automobiles, straight from the factory, run perfectly well with gasoline that is 34% alcohol. With some conversion, they can run on 98% alcohol.

Many of the vehicles in Brazil that have been running on alcohol since the 1970s were produced by American auto manufacturers Ford and GM in Brazil.

I also understand that at least these two companies here in the U.S. have routinely been manufacturing flex-fuel vehicles for several years now (certain types, mostly SUVs, I believe). Apparently, our government is the big buyer of them, but anyone can order one, and they are said to cost the same as a straight gasoline vehicle.

Sue