Rhonda,
I don't think they were foreign built. They are from the late 50's , early 60's if I recall. I wasn't born then but that's what I think I remember reading. I've seen three of these cars in person. Once when I was a small kid, once when I lived in DC in Old Town Alexandria, and a few years ago at the Easter Car Show here in St. Louis. Maybe I'll see it again this Sunday.