Developing a car from scratch starts with some drawing and calculations, then the building of test prototypes, then pre-production cars, and eventually the pilot production vehicles. Most of the time, test prototypes are usually destroyed when their use has been exceeded, yet here we are looking at a test prototype of the Porsche 959 – a car that is believed to be one of the few surviving examples of the F-Series prototypes from 1985. It’s currently listed for sale on Mechatronik for an undisclosed price, but is It truly authentic?