[Marcus]

It´s my understanding that the artist (or whatever you´d like to call him for that matter) crushes a prototype given to him by the Porsche factory.
It´s a common practice for car manufacturers to crush all road-going prototypes and work horses after they´ve served their duty. For reasons of product liability and insurance reasons that is.
So instead of crushing the car on their own Porsche had obviously decided to give this particular car away to the guy to do the same thing for arts sake.