While doing some research, I came across an article about this car with a body that was thermoformed from ABS in 1960’s. Several prototypes were built by Borg Warner to promote their new plastic, ABS. This is the best article I could find that explained the history of these cars.
The Piranha was a kit car that was inspired by the Cycolac Research Vehicle. Here are some photos of a surviving Piranha
Here is another article that has a lot of good photos