I have owned 3 Hyundai's and loved them all. They lasted a lot of miles with no problems. I also have a Saturn that I love, but that's a different story. So when it was time for a new car back in '05, I wanted a Hyundai because I have always had good luck with them, but wanted something a little different too. So I chose a Kia Optima because it is owned by Hyundai, and I figured the quality would be about the same. Boy was I wrong. The car was only a couple months old and had 20,000 miles on it, but it was half the price of a new one. I fell in love with it and bought it.
I keep having the same problems with it and the dealer keeps fixing it, only to have the same problem come back. The stupid car would get stuck in 3rd gear and would stay that way for days. At a red light, it is very hard to take off in third gear, and on the highway you are almost redlining. Even trying to shift the plus /minus semi automatic thing wouldn't get it out of third. When I took it to the dealer, they fixed it under warranty and said it was a computer chip. A few months later same thing, same "fix" The third time it happened they said it needed a tune up. The tuneup they did did not fix it. By this time the car was over 60k miles and the warranty was up. So when I took it to get the timing belt changed, they fixed the stuck transmission (for $60) and so far it works. Which means they knew they were never fixing it in the first place, but when I was forced to pay, then they said OK let's fix it.
Another problem is the airbag light. It comes on while the car is under warranty. They "fix" the chip, it goes off for a month then its on again. They "fix" it again, goes off for a couple months then is back on. Now the warranty is up and the airbag light is still on.
Check engine light too.
At 60k miles the high pressure coolant hose went. I had to have the dealer fix it for $300 because Kia does not allow that hose to be sold in auto parts stores, so I couldn't do it myself.
I will never own another one.