I know the ethanol thing is just so inconsistent distribution wise within the US that it's hard for it to be a universal fuel for everyone. It is an amazing fuel with it's cooling properties and high octane rating, allowing tuners to run very aggressive timing. I will have an E85 tune along with a 93 tune on my AP for my XTI's new motor build. I will use the 93 tune most of the time and run the E85 for fun stuff. I think most good tuners get a good solid pump gas tune as a base and then tune for the E85 from there. I personally don't want to screw around with meth injection to supplement pump gas, I want to keep it simple fuel wise. I made a simple tester with a Nalgene bottle so I will know the alcohol content before I put it in my car. Most of the test I have run on E85 in Michigan has been 80-90% ethanol and I don't drive my XTI in the winter, so the cold climate E fuel change does not really matter to me.
This car http://forums.nasioc.com/forums/show....php?t=2415750
is a beast though!