What sort of car should i buy?

A non-turbo Supra sounds right up your alley. Still relatively powerful, but it's an inline-6 and non-turbo'd. Also you could go for an R34 Nissan Skyline GT-T. As far as I know they don't have turbos, and once again they still have decent power. 2.5L inline-6 and tiptronic semi-auto transmission. If you are a patriot and like your Fords and Holdens then the poor resale value would also help in finding you a decently priced used XR6.