I have a 2006 Cayman S that has experienced the trunk clunk since the beginning. After numerous visits to the dealer I asked Porsche to intervene and formally tell the dealer how to resolve the issue. I spoke personally today with a regional representative of Porsche, A Mr. Drabers (sp) who denies the existence of any problem and claims that any noises heard are a normal consequence of 19" tires and stiff suspension. I realize there is a home remedy on this site for repair but it is unacceptable to have to repair your own car after spending $60K+. I have owned several Cayenne S's, a 911 C4, a 911 C4S and now a Cayman S and the arrogance of PCNA is disheartening. I will live with the issue until I trade the vehicle, but I will certainly remember the conversation with Mr. Drabers when it comes time to select a replacement vehicle.