No problems so far.
This car has been quite solid, it is the second Elantra I have purchased and I plan to buy another one when this one gets old.
This Elantra is very quick and responsive, specially with the 5 speed manual. I have added a cold air intake and a cat-back exhaust system which really boosted the power, I also swapped the rear sway bar for one from a 2003 Hyundai Tiburon GT V6 and the handling has become very tight and the improved greatly specially at high speed turns on the freeway.
Overall I love this car, I would recommend it to anyone who wants to have a low priced car with a high level of quality and a 10 year 100,000 mile warranty to back it up.
(2003 Hyundai Elantra GLS 5 speed)
Doing modifications to a car. Does this not void the warranty?