Most fuel injection cars can be retrofitted for not too much money to burn E85. I seem to recall figures like $150/car. Essentially a few fuel lines may need to be replaced and the computer's fuel tables must be altered to allow the burning of E85, along with a sensor to allow the computer to determine how much of an ethanol blend is in the fuel.

I'm personally more interested in retrofits with motorcycle engines or electric motors, but those are MUCH more expensive. :)

Doesn't E85 rot seals and fuel lines and such?

I guess one nice thing about being out here in the Red State Asteroid Belt is, no E85. And when/if I return to the Bay Area, it's bicycle for me and that can run on pure ethanol. Especially in cold weather. This type of bicycle fuel is also very contamination-tolerant, such as the worm in good tequila, or whatever it is they put in Jager.