I found water on the floorboard, front and back, on the passenger side of the car. To be fair, I let my son drive the car on a rainy night ande fear he left a window open. He claims he did not so i'm left to seek answers elsewhere. I live in Virginia so salt treated roads are not an issue and the undercarriage looks to be in perfect condition. We do have a great deal of leaves that drop during this time of year and I wounder if a drain pipe is clogged and if the water would overflow into the car some how. Seems unlikely.