2002 PORSCHE BOXSTER Structurebody Problems

WE OWN A 2002 PORSCHE BOXSTER WITH APPROXIMATELY 66,000 MILES. WE PURCHASED THE VEHICLE, USED, IN LATE 2003. ON THREE SEPARATE OCCASIONS WE HAVE EXPERIENCED TOTAL LOSS OF USE OF THE VEHICLE DUE TO WATER LEAKING INTO THE INTERIOR COMPARTMENT AND FLOODING THE CONTROL UNIT, RENDERING THE CAR TOTALLY INOPERABLE. THE INCIDENTS HAVE TAKEN PLACE IN OCTOBER, 2004 AT 33,000 MILES, APRIL, 2008 AT 61,000 MILES, AND CURRENTLY IN FEBRUARY, 2010. THE REPAIR HAS INITIALED REPLACING THE CONTROL UNIT AND HAVING TO PULL OUT THE CARPET SO AS TO INHIBIT MOLD GROWTH. THE FIRST INCIDENT WAS REPAIRED UNDER THE VEHICLE'S WARRANTY, THE SECOND TIME WAS REPAIRED AT OUR EXPENSE OF APPROX. $1,600. THE ESTIMATE FOR THIS CURRENT REPAIR IS $1,500. WE BELIEVE THIS POSES A SEVERE SAFETY RISK BECAUSE THE FIRST INCIDENT TOOK PLACE WHILE THE CAR WAS IN USE. WE WERE DRIVING UP A HILL. SUDDENLY THE VEHICLE BECAME...