The 2013 Kia Optima is a decent car with few negatives. Over the last 3 years I've owned the car, my only real complaint is with the automatic traction control. It is WAY TO SENSITIVE, and yes that needed all capital letters. all though there is a button to turn this on and off, its automatically on whenever you start the engine. it doesn't make a difference if its pouring rain or if theres a puddle on the intersection or some loose gravel. if its under the tires, it kicks in when you press the gas and jerks the car violently by braking automatically. this has almost caused accidents based on me trying to accelerate to turn into a lane where i normally would have a ton of room to get up to speed. instead I'm just cutting it close and have the car behind me laying on its horn. I really hope newer models are addressing this issue.