Water pools in the footwell behind the front seat after it rains. It seems to be entering at the bottom of the rear door near the centre, but I can't see how to prevent this. It comes in mostly on the passenger side when its parked with that side away from the kerb. Anyone else had this problem? Luckily the carpet seems to be backed with plastic so the water does not spread elsewhere, and is relatively easy to mop up, but is causing terrible misting up problems - or perhaps I have a leaky heater radiator as well!! This is a 3 year old X reg.