Mine leaks a little on the drivers side passenger door when it goes through a high pressure car wash, its not terrible and does not do it during regular driving I think the rubber gets compressed by the jets just enough to let some on the rear seat.

No idea on the foot well problem though unless one of the seals on the firewall is not installed properly or is missing.

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Currently 2010 X6 35i, Premium, Technology, Sport.
2004 Lotus Esprit - Final Edition
Former '04 X5 4.4i, Highland Green, Nav, DSP, PDC, Heated FR & R Seats, Comfort Seats, Rear Load Floor, Premium & Sport Package, IceLink Plus, Bel RX65, Tow Hitch, Sirius Satellite Radio.
Former '03 X5 3.0, Nav, Premium, Rear climate. (Stolen)
Former '01 X5 3.0, Nav, Premium, Rear Climate (Lemoned)