Absolutely nothing so far.
The car is not as responsive, lacks adequate feedback. Living in New York, some of the highway ramps are steep (BQE) and with such lack of power, getting on the lane can be tough. The S model is more show than go. I wanted the XRS, but my folks isn't much inclined toward a manual. However, the car has not had a single problem yet. Replaced the oil at 5500 miles. A little noisy, but ride is quite smooth. Swaying is tolerable in windy drives on highway.
Fuel Economy and general reliability of Toyota makes this a very affordable car.
" A little noisy, but ride is quite smooth"
The engins is noisey cause it uses a timing chain as opposed to a timing belt (which earlier corollas had), which makes that little engine much more reliable and long lasting. Other than oil changes, and tune-ups, this little car should last you a very long time!
Enjoy!
Maybe letting the engine achieve a few more rpm's. Mine loves to see 4,000 on the tach. It seems to be the start of the power curve for my "S".
Think about changing the oil every 3,000 miles. 5,500 isn't a very good idea.
Oh, by the way is this your car or is it your parents?