They are quoting the "By the Numbers" book, there is a pic: 0 known to exist.
So, when was this book published?
I think I've seen more than some of the known numbers listed.
But we have been down this road before; my car is 1 of 1 too: its the only one known to exist with a 4 speed, bench seat, pealing clear coat, a front bumper with holes for bumper guards, and only 1 screw holding the rear interior trim panel on- there's supposed to be 3!
Bidding starts at a gagillion dollars.