Oddly optioned cars and Dealership demonstators?

My first car was a 65 Dart 270 post 2 door with a HP273 and a 3 on the tree. One of just a handfull made, which I found out a few years ago. That car got me started loving Mopars! I have 1 Polaroid photo of the car somewhere. I'll find it and post it someday.