Yeah, ethanol behaves very differently from gasoline, although i think a lot of the difference is pretty much smoke and mirrors by people who want to sell you special parts and pieces. Ethanol is just alcohol, just like methanol. And methanol has been used in race engines for 70 years or more. The difference is that methanol can be used at 100% , while ethanol has to be cut with 87 octane to get it to light. And that's where some of the special tuning comes in because you're having to put alcohol AND 87 pump gas through the motor.
is and isnt....methanol is highly corosive and I believe you use even MORE fuel (50%+ over gas) flow volume which is why you have to change the oil every race bc it just floods the oil.