I'm firmly of the belief that if you're going to go to the trouble of fermenting corn and then distilling it, it should be consumed responsibly as a libation, not burned as fuel to simply drive around.
Now isobutanol, that's some good stuff right there Maynard. It's an advanced biofuel I could support. Higher energy density that ethanol and could be a direct drop in for gasoline. There's encouraging progress being made in process development for producing it from stuff other than corn, such as other 'left over' sources of cellulosic feedstock as well as natural gas.