I've got a friend that had a 31 Sports Coupe that had a slant window that he had bought and wanted to get more information about it, so he took photos of it and sent them to the Ford Museum and asked if they could furnish any information about the car. The return letter told him that Ford never made a slant window 31 Model A Sports Coupe and that they didn't know what he had. They suggested that maybe someone had used two different bodies to make it. I have done a lot of body work thru my 75 years and if that was true, they sure did an outstanding job. Anyway, that letter ruined my friends love for the car and he sold it. I had told him that I wanted it if he ever deiced to sell it, but he must have forgotten. I didn't care who made it because it was a beautiful car.