I can attest to the lack of build quality, had one for a day, felt flimsy and cheap, lots of rattles, squeaks and a horrible styrofoam rubbing sound coming from rear window area...
But to be fair, my '11 Sonata's been disappointing.
Many squeaks,rattles at times, the dash vent on the drivers side makes a ugly crunchy plastic sound when driving over rough roads, the drivers door sounds hollow and cheap, the trunk is being repainted because of rust pits under the paint,the complete dash gauges were replaced,sway link,air bag computer, one taillight was replaced for condensation,the tail lights had to be taken off because where the come to a point on the fenders the plastic was rubbing the paint off.
I've e mailed Hyundai, I was nice and not nasty, not even a response... I should not be surprised I guess....
This is the last domestic made Hyundai I'd buy. None of my prior Korean built were this bad.
But I doubt I'd even bye a Hyundai again period. Sad because I've been a fan and customer since my first car when I was 16 and bought a Pony.
I wrapped the odometer like 3 times on that thing delivering papers in the country ... Very hard on a car that job...