There was a guy here at work that did that. Got extreme and sold hit TDI Jetta due to he kept having problems with it. I told him, you did get one of the last ones that they were selling to the US that year, that was in 07. He said he had about 5 problems with it and it cost him about 2k in money out his pocket due to the stuff that broke was not under warranty. Sounds like you find a good warranty and stick with the car. If it is that bad, go down to your local Autozone or some place and have them do a FREE OBD2 check. They tell you if it's the damn gas cap. If it is not, you take it back to dealer and Say WTF! Fix it. Customer is always right. Kick them in the A$$. As for the gear shifter sticking, I don't even have mine yet and have read about it here on the forums. Probably be the first thing I do when I get my car. Grease the shift nob and probably fixed before it becomes a problem.
Good luck.