I really like the powertrain warranty on the Hyundai/Kia cars. I was also considering the Mitsubishi Mirage and the Chevrolet Spark. I assume I can find parts easily for the Spark. I don't think Mitsubishi parts are readily available either and might be harder to find than Kia parts.
Basically I need a small city car, since I live in NYC. I will never touch a Mini again. That car had so many problems, the parts were mostly dealer only and incredibly expensive. Also, no one knew how to work on them. I tend to keep my cars for a long time and I want a car that is easy to work on and has parts that are readily available at a local Autozone or NAPA.
Also, I felt the Kia was the best of the bunch, because it has a traditional 6-speed auto, not a CVT like the others. CVTs have a bad rep, and I feel I should avoid those.