Got some numbers for you Outsider. I was lucky that the previous owner of my 66 had allready regestered it through Galen Govier and his production numbers are as follows: Total production of 1966 273-4bbl Dart GT's built for sale in the USA is 2,856. 1,237 of those were 4-speeds and 1,619 were automatics. Dodge combined GT hardtops and convertibles so no further breakdown is available. toolmanmike