I am a new forum member as I just bought my Cayman on Monday. I am totally loving the driving experience as the handling is just amazing. I do have one problem however. When ever I go over a tar strip on the higway on any other heavy bump, the rear hatch bangs and even the glass rattles. I believe there have been some earlier discussions regarding new buffers from the factory for the hatch. Does anyone know the details and are their any recommended 'self' fixes to try. This is driving me crazy and taking away from the overall enjoyment with this great car. Thank you.