Where to start, I bought my KIA used in 2005 it was my very first car. For the first year and a half I didn't have a lot of problems with the Car however the light in my car would work only when it wanted to and sometimes my car would stall at lights. I found it hard to go over 100km. I did all of my annual check ups such as oil changes, changing all fluids etc.. Than in the winter of 2006-2007 I started noticing that my wheel bearings were not sound right, and than within in a 5km drive to the store my KIA started idling and puttering along,so I took my car to the mechanic and let me tell you I was not happy to hear what he had to say. I had a burnt valve which needed to be replaced and of course the head gasket and the head was also worped which needed to be replaced and I needed four new wheeling bearings after everything is done $1350.
Before all of this happened I would have recommend to anyone to buy a KIA, now on the other hand I would never buy a KIA again I need something that is going to be more reliable.
I would have to say the only good thing about a KIA RIO is that they are great on gas however you may be saving money on gas, but in the end you will be putting more money into the car.
My 2003 Kia Rio had a burnt valve after 72,000 miles.
The left back wheel bearings have gone now 3 times at 29.000 miles, 57,000 miles and now at 114,000 miles.
Have have a Camry with 200,000 miles and has never needed wheel bearings!