Why didn't Henry Ford design his cars for ethanol in the first place?

These answers are all wrong and it proves the gross ignorance of the general public when it comes to ethanol. The Model T, the first car ever built, ran on ethanol ONLY. It did NOT run on gasoline. It was only after prohibition, when alcohol was banned, that Ford switched to gasoline cars. The Model T by Henry Ford and all the first cars ran on ethanol exclusively. Below is the link to prove it! Look at the 2nd pic down and caption. The Model T was designed to run on ethanol, not gas!!!!!!!!!!! Don't be brainwashed by big oil liars.