Porsche considered alternative body shapes to the classic five-door SUV for the Cayenne early on. Shortly after the launch of the first-generation model in December 2002, three additional variants came in for consideration: a coupé, a version stretched by 20 centimetres and with an additional row of seats, and a convertible.
Surprisingly, what might have appeared the least conventional option, a Cayenne-based convertible approximately 4.8-metres long, was not immediately discarded, but actually built.
Today, there is still a single example of the open-top Cayenne kept in storage at the Porsche Museum. It is not a roadgoing prototype, however, but what is known as a Package Function Model – or PFM for short. The designers had the roof removed, but dispensed with the body-stiffening measures necessary for a convertible. Incapable of providing a safe and stable drive, the vehicle is transported to its destination when required. Test drives were never planned, as the convertible PFM was only built to assess four criteria.
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