Although the car wasn't driven by McQueen personally, it did appear on film. It also helped capture some film, since it was used as a camera vehicle, too. After all, if you're going to be recording race cars on track, you need a car that will keep up with them. According to Gooding & Company, the car was also used as a test car for the 1970 24 Hours of Le Mans. After that it was sold to a real factory Porsche driver, Jo Siffert, who subsequently leased the car to McQueen's film company the following year.
The auction company says the car disappeared for a long time after Siffert passed away. It was then discovered in a warehouse in France in 2001. The company also says that the car just completed a restoration this year. The car must be particularly well-restored, since it was apparently restored once before in time for the 2014 auction. Regardless, the results are impressive, and the car sounds glorious. It will go for auction at Gooding & Company's Pebble Beach event during the concours, and it's expected to sell for between $13 million and $16 million.