 I rolled off the showroom floor with 4 miles and have had little to no problems.  Initially, had some problems with the transmission mounts but Hyundai was quick to fix with no cost.  Also some stereo issues.  Keeps shorting out for some reason.  As it gets older, the engine makes a little more noise.  Exhaust sounds from the engine compartment is the most noticeable.  Overall, I'd buy another one in a heartbeat.  What an awesome car with excellent features.  IT ALWAYS STARTS!!!!!