Searching information on 1965 Dart Charger 273

In 1965 they produced 15090 Dart GTs with V8. Out of those cars 5631 Dart GTs had the 273 Charger option. 2492 Dart GTs had the floor shifted 4-speed and 3074 Dart GTs had the three speed Torqueflite transmission. But there were 65 Dart GTs with 273 Charger option with three on the tree! Got to be a rare one!