An extraordinarily rare ‘Python’ Ford Mustang has been listed for sale on Facebook Marketplace with a $45,000 asking price.

The story goes that work on the Python started in the mid-1960s as a project that Carroll Shelby could use to replace the AC Cobra. Both Coupe and Convertible prototypes were built before the project was scrapped. Fast forward to 1981 and a man named Alvin Kelly found an original prototype body and built up four prototypes with the help of McKinley Thompson, the designer that originally created the car.

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Kelly is thought to have produced approximately 12 examples of the Mustang-based Python at his factory in Colorado.

 Ford Mustang-Based Python Is One Of Just 12 In Existence

This listing is for one of those vehicles and it is available in Colorado Springs. The seller notes that most of the parts are from a 1991 Ford Mustang and that it is being sold with a clean Colorado title.

The unique bodywork of the Python makes it look like a mash-up of a Ford Mustang and a Chevrolet Corvette. Found at the front is a pointed fascia with a sharp bumper incorporating simple horizontal turn signals. It is also rocking a pair of pop-up headlights and sits on a set of distinctive wheels. The rear half of the body is also unique and you’ll notice that it is a Convertible.

The seller mentions that he purchased the car 15 years ago from the original owner and has driven it less than 1,000 miles a year. It currently has 37,000 miles (~59,500 km) on the clock.