When it rained heavy amounts the car would leak into the floorboard. Took it to the dealership and they said the sunroof was clogged so I had that cleared but the rain still persisted to get in the car. Took it back and they said the drain could be leaking down inside somewhere so I sealed off the sunroof, still leaked. In the end I found out it was coming in through the door seal when it was parked on just the right angle. Being the first Buick I have ever owned I thought it was supposed to be a luxury vehicle, one that would last me a while. After having so much water in the carpet that it started to mold I have decided that I do not like the swimming pool in the floor option and would like it fixed. Since the seals are fine and it only happens on certain angles (which happens to be the exact angle of my drive way) it cannot be fixed. I would like to force the CEO of GM to ride this car for a few months!