A used Porsche? Hmm..... My dad has been driving Porsches for years, and his observation has been that the mechanical stuff tends to work great, but the stupid interior trim pieces and whatnot have all kinds of weird failure modes. From driving his various cars, I'd say that the older Porsche 911's are really annoying and difficult to drive, mostly from their astonishingly heavy clutch. The newest 911's are much more civilized, although that very civilization seems to piss off the purists every bit as much as the new Cayenne.

I haven't checked into the used market for something like a 911C4. What do these tend to go for from a dealer that gives you a multi-year warranty?