1963 Dodge Dart 270 Convertible for the Wife

New to Mopar world so i need some info. I have a 1966 Dodge Dart gt convertible, 273 2bbl.,auto on console,dual exhaust,pwr.st.,pwr.top. & factory A/C i have been told that this a very rare car?? Does anyone know prod.#s of this car. Is this info on fender tag? Thank you for any help.