What should I do? Right now I have a 2001 IS300 w/ 52,000 miles and a extended warranty. I have been trying to sell it to get a supra but I haven't been able to sell it. One of my friends with a Subaru WRX turbo 2003 w/ 6,000 miles on it wants to make an even trade. What should I do, trade? Also what kind of cars can I expect to beat with a TBKO turbo kit in my car? Which will also be the quicker car in the end?