Basically, I have no idea what I am talking about, and you just made me feel better that my car isn’t going to crap out if they put more corn in my tank. Aren’t there other biofuels we could be mass producing that won’t price food out of people’s reach?
Yes - we can and should be (if we’re going to mandate alcohol in fuel) making alcohol from stuff like switchgrass and other such weeds that don’t replace food crops or take up food crop growing space.
As for the Saturn - well, it may crap out soon, but that’s because it’s a Saturn, not because of the fuel. :)