Yes, The Sprint 200 Fastbacks are indeed hard to find. Most were converted to V8 cars or lost over time. They are still out there though.. After all my 20+ years of shows, I have yet to be confronted with one! I'll see a Sprint 200 convertible like my own once in a great while, and a Sprint 200 Coupe here and there.. All three Plants (Dearborn, Metuchen, and San Jose) produced Sprint 200's. Unfortunately, No actual production data exists, Only estimates, A sad shame, since for 1966 models Ford punched up the DELETE key! (A Quote from Kevin Marti...as the 1966 Data DID in fact exist, Kevin just showed up a year or two after it had been deleted unfortunately, and met the actual guy who did the deed. ) We are surely grateful to him and Lois Eminger for the '67 to '73 data. If it wasn't for them, That data would be history as well.