Found something on THIS website about the car, that is supposed to be real...

This is the only one remaining of three made. It was recently featured in HPP. Singer (the sewing maching company, a show sponsor) provided a full console stereo/tv that took up the entire back seat (which has since been thankfully removed).

I'm still not convinced..

From what i read, the car has been on several Pontiac meetings; somebody must have seen it there perhaps....?