The main problem that I have had with this car is stalling out in idle mode. (Meaning, I am either at a stop light or sign and the car cuts completely off. Thankfully, after turning the car off and into Park and then restarting, the car starts back up-but it is very nerve wracking when this happens, because I don't know if and when the car will no longer start back up.
It is roomier than other cars, such as the Toyota Echo.
The seats don't go that far back and I have bonked my head on the roof of the car numerous times (while getting into and out of the vehicle-not recommended for short people.)
Car does not travel smoothly at speeds higher than 55 m.p.h.
As a new car buyer, I would not recommend this car to other people due to mechanical issues that are un-solveable.
Sounds to me it's a simple fuel injector cleaning. What has Kia done about your problem?
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