I do have the expensive adaptive sports seats and I believe all these items you mentioned are exclusive to these seats. I remember reading the manual saying the strap is on the sport seat only.
The seats are great. Highly adjustable and convenient with the memory features. Makes it much easier when driving after my wife and vica versa.
Really looks sharp. I think all of us are impressed with the updated interior workmanship and materials Porsche updated the 987 with. Drive it gloriously and enjoy it. It is an addicting drive.
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