[JWPATE]

Thanks,
I have now learned that the pads are NLA from Porsche. I have one taken from a wreck, and will replace when next I service the Porsche. My Son has offered the probable cause of the missing jack pad though; they are often pulled off by tow truck operators as they place their hooks in them to pull the car up onto a flatbed. The pads were never intended for force from that direction and pull off easily.
James