Engine stalls.
Windows do not roll down properly.
Rear hatch does not stay up.
Muffler is frequently replaced.
Air conditioner leaks.
Driver side heats up near gas tank.
Transmission problems.
Seats are wearing out.
Does not accelerate well.
Do not jump out in front of another car; you will not get anywhere.
However it is a good running car, once you get it started.
I have a '99 Kia Sportage and the engine seem to be working fine. I do have window problems and the air conditioning-fan is noisy at 4. It burns a lot of fuel to me. The parts seems to be reasonable.