Is this Porsche 959 Sport Prototype the Fastest Factory Model Yet?

A Porsche 959 Sport prototype, known as F9, is speculated to be the fastest 959 ever built, with a lighter curb weight and a more powerful twin-turbo flat-six engine. Despite being a bit rough around the edges due to its use as a test car, F9 is a complete car that performs astonishingly well, with a 0 to 60 mph time of 3.6 seconds and a run to 100 mph in just 8.3 seconds. Recently listed for sale at an undisclosed price, F9 is considered very special as the fastest 959 to leave the factory.