Nothing has gone wrong with this car!
The Sentra has been an excellent car for us and a very good value.
It currently has 77000 KM on it and aside from regular maintenance we have not had to put any money into it.
We have not even had to replace the brakes yet; we check them on a regular basis and the mechanic says that they are still okay.
My only complaint is that the tires that Nissan put on the Sentra were not very good.
Your right about the Nissan tires they are horrible I had to get them all changed on my Nissan Sentra good thing the tires were still under warranty. I only had less than 20,000 miles on these tires Dunlops are the worse tires I have had on a car.
J.S.