Nothing as of yet. The bonnet latch was stuck one morning, but that was fixed with a little oil. No problems since.
Great handling car without all the quirks of the 993 series. I have driven the 993 series and understand the nostalgia of the sound and feel. But unfortunatly, as charming as that old technology is, the 996 engine and suspension put it to shame when it comes time to take a turn at 60mph or you turn to hard on wet pavement.
My favorite points of the car:
1) The interior. I have the fully optioned leather interior and it is very nice. Without 3 to 6K interior option it will look cheap, so make sure you find one with it. Seats are comfortable and the quaility is high (again, full leather option only).
2) Handling. I am not the greatest driver and have gone beyond my limits with the car. The PSM saved me from going into a ditch when I slid the back end on a wet surface. It sticks to the road without giving a bone rattling ride for every day driving. The 993 had a stiffer ride, but it is all for naught since it gets eaten on the turns.
3)Sound. I'm not trying to draw the attention of every cop when taking off at a stop light, so I appreciate the more subtle sound of the exhaust. After 4K (RPM) it is quite gorgeous. I know the purists will hate me for this comment. But I always thought the air cooled sound made it sound like a modded VW bug. I prefer smooth and throaty; or the banshee sound of my Ferrari.
Dislikes:
Options: My car has nearly 30K dollars of options on it. I find that amount of money absurd for an already expensive base. The fully optioned leather interior should be standard. But, without the options the car would not be worth owning.
Stereo: I have the Nav System and the stereo is average. For a $98K car you would expect much better.
Nav System: Kind of cool to make it speak German. But the detail of roads in Northern Ohio is not so great. I'd expect more from a $4K option.
I agree with the VW Bug sound. It sounded like a Singer sewing machine. The 996 blows away the 993, in sound and more importantly performance. I have owned both cars. Matter of fact, that was the one thing I disliked about the 993, the sound.