where are you getting your warrenty work done at? since you live down the street, I'm sure you've noticed all of the hyandai's in the driveway... all '03's... dude, I could make PAGES of stuff going wrong with them.... 2 Sonotas and they are JUNK (one the high end model Sonata... and if I'm not mistaken aren't the Sonata's supposed to be the pimpshit of Hyndai anyways) and an '03 Elantra which has had more issues to bring up also. Every time they have been taken in for service, the service dept's fight tooth and nail to fix things....
You might have gotten lucky, or you blame the things going wrong as things that you caused, but remember... cars are meant to be driven... and as far as I'm concerned a new car regardless of how hard you push on the gas or brake, it shouldn't give you any issues.