I have had water leakage in my trunk and back floor. This comes form the back tail lights. What you need to do is put silicone sealent around the tail light and the trunk around the tail light. Heavy rain will cause the water to flow inward and there is a half inch gap. You need to make sure you dry out the car and put a heater in overnight. You'll need an airfreshner, since it smells so bad. For those of us in winter and cold weather, you need to do this in a garage. The condesation covers the windows and even freezes. I hope this is helpful to those of you with this problem.
If anyone is experiences squeling with the steering wheel or air conditioner, get new belts or have them re-tightened.
Other than these two problems I have enjoyed my car make sure you get your oil change every 5000 km to up keep your engine.
Josh