An ascMcLaren forum for 84-86 Capri and 87-90 Mustang based cars modified by Automotive Speciality Corporation, a Division of American Sunroof Corporation. (no affiliation)
I know many have been collected, but don't know where.
I was talking with a member of my Shelby club about my Coupe and he mentioned Edsel Ford II ordered one, but did not like it. It was sold with low miles on the Ford B-Lot, probably in 1986.
My connections say they can run the VINs and see which was delivered to Ford's "dealer" code for WHQ delivery, like any exec cars.
I had known about a lady here in Michigan that had a GP4 that she had either repainted and re-stickered, or had simply re-stickered. The story is that she needed to ensure it was done effectively and that she put it all on the line to ensure it was right, this was about a decade back.