Nothing really, other than basic routine maintenance. I did have a problem with the power windows, locks, & cruise control, but that was due to two blown fuses (fixed within minutes). Also, the latch on the fuel door broke (so what).
All in all, quite amazing considering it's driven hard sometimes (Maintenance always PAYS OFF !!!)
I love this car! - It has always been there for me. She always starts the first time, never hesitates or lags, accelerates VERY quickly, both in the city and on the highway (passes VERY well). Very little road noise, even at high speeds (80+).
Sound system is powerful and very lifelike, very efficient, even when "peggin' the pedal" (350-400+ miles per tank) Seats are VERY comfortable, controls are easy to use and well placed. The coin tray is perfect and handy, but the CUP HOLDERS ARE HORRIBLE!!! (well, I guess something has to be less than perfect, but at least it's something I don't care about, or use anymore).
Tight steering & firm suspension make driving this car even more fun. I have only needed AAA service once... When I locked my keys in... Wish my memory was as reliable as my car.. I recommend this car for anyone looking for performance, reliability, low maintenance/costs, and great flexibility. My only complaint is the incompetent, irresponsible dealership (service dept.) which I purchased it from.