Water leaks in during heavy rain, flooding the rear and front driver's side floorboards. Also, I can hear the water sloshing around in the body of the car somewhere for about a week after the rain (until it dries out). I have to use a wet/dry vac to remove the water from the floor, and immediately after, more water builds within about 10 minutes. I bought a waterproof car cover as a temporary fix, because the problem mostly occurs overnight when the car just sits in the rain.