A non-recreational parachute.
A fire extinguisher, except when you’re training.
A snake bite kit.
A towing eye for your race car.

And yet all of these things need to be top quality, well maintained, and ready for immediate use.
A lot of the chassis and structural elements in the Cayman are aluminum. These are engineered closely to their projected loads and stresses. In the rear bumper area, there are not a lot of heavy duty attachment points for a towing eye.
Oh, Porsche provided one, in a suitably robust location – but they also expected that it won’t be used often. So the location is accessed behind the license plate. That works great on a race track, because there are no license plates on the car.
But rally uses public roads for transits. So license plates are a must; but still, when you want to use the rear towing eye, it’s gonna be a non-calm situation. Then you have to pull off the rear plate?
Nope.

The nice round hole in the aluminum plate comes from a “gasket punch” originally used in some heavy industrial setting. It came into my hands through a local auction shopper.
Quoth he, “I never thought I would find a use for these.”