I'm having a hard time seeing "Chevette" in that one. The back is too straight up and down or something.... I'm not really sure what it is, or what is supposed to be. I don't think one piece of the body on the #20 came from a production car. Depending on what year the picture is from, maybe it didn't even have to be like an actual car... Just had to be a within the width spec, and the height spec maybe? By the early 80's, it kind of became a free for all.