Not exactly a repost because it is a similar Porsche Teram but with a one off, very crude, home made rear body section.
It is not a factory prototype. This is what the rear looked like before it was butchered.
Porche 356 chassis?
The Teram didn't have a Porsche chassis, the chassis was made by Teram, it was square box section with the fiberglass body attached. Teram did use Porsche engine, gearbox, rear drive train, complete front suspension, wheels, steering, steering wheel and dash instruments.