Experimental... That sounds about right ;)
I've heard that they've used PVs to try out stuff that they later used in their other cars (P1800, Amazon)
That could explain the strange-looking bumper. I mean, people with their heads intact would prefer the original one, right?

The dashpad is original (stock) and so is the instrument panel.
It's the late PV544 version, they came in that way directly from factory.
The grey paint has a bad habit of flaking off...

I don't think that the shifter-knob is original, and the seats are different too, my guess is that the seats came from the same car as the steering wheel.

I do think that the paint is original, the car is in great need of a paintshop job, just check the last photo...

The car doesn't look to bad though, but is it worth $5.000? Probably not.