It must be very,very low,there was 1 at a Nat. meet in NY 7-8 yrs ago and its the only one ive ever seen,a 50 that is. ken ct. and it was an original one unrestored.
It was only ca 800 made in 1950 first year! They made a car to each dealer for display. In the first place. Mine is a 100% original car. new roof replaced. untouched 80% of the paint is original and never re painted. Monteray was available in three different colors. Black / Yellow. Blue / Blue. Maroon Red / Black. The White / Black. Was never made.
There were likely more of the built for the 1951 model year but I doubt if production went much over 2000 units. A lot of them probably ender up chopped, nosed, & shaved or some other unfortunate customization process.
When I was a kid, in the late '50's, there was a man who owned a '50 Lincoln Cosmopolitan ForDor Sport Sedan, which had a black & yellow hound’s-tooth checked vinyl roof. I've never seen another one.
The Cosmopolitan 2 door with vinyl top was called a Capri and they were very rare. The 4 door with vinyl top was probably done up special for the owner at a trim shop.
A month ago I would not have believed these existed-I toured an extensive car collection and one of these Montereys was in the collection. It was a survivor and looked great.