Let's see, we have PASM, PCM, PDK, PDDC, PTS, PTV, etc. etc. So, "Permanent Negative Stability" (or PNS for short) must be the newest Porsche acronym from our friends in Stuttgart, right? It's not. Apparently, it's art. If you can't see the videos in this post in your email, view them directly on our site at Permanent Negative Stability …
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