Plenty of 450+ setups on the gtx's. Ask someone who has one to take u for a drive! If your in Sydney, I'll take anyone who wants to see one in action. E85 is a good fuel provided you understand it. And as Ratter rightly highlights, there is quite a few things you need to consider before running the biofuel. Not as simple as put it in and make power. I think that's the important point Ratter made here!!!