With your budget you'll be looking at 2006 3.2s at indi dealers or a 2.7 at an OPC. The 2.7 is a nice enough car with 245bhp but the 5 speed box is a bit long legged and you need to work it a bit. The 3.2s has more torque and a six speed box so more rounded. Only look at my06 cars onwards as these have the modified ims bearing and are less likely to blow the engine , 6k fir a rebuild, 11k for a new engine from Porsche and don't expect any goodwill. Hence why for complete peace ofmind you need a warranty!
What you get is a sublime driving experience, perfect steering feel and accuracy, superb chassis balance and grip. Hugely practical with front and rear boots although not much use for trips to the refuse dump or Ikea!
Like all cars they have their issues - read the first 50 posts on a forum like boxa.net and you'll know most of them. Brake discs rust easily, rms leaks, air con condensors, battery failures, coil packs. Forget their sat nav, updates are £400 a pop, the system is outdated and a £100 tomtom is far far better. Full leather is nice, auto air con worthwhile, Bose hifi, heated seats. 18" wheels best fir ride andhsndlingbut everyone wants 19s - ride a bit firm. Pasm improves thingsbut dampers are £450 a corner.
If you are prepared to buy privately then you should be able to find a 2007. 3.4s in budget.