I agree with what everone has said.
I'm no authority on this but yes, there were no R/Ts for the '72-'74 model years. In those years, only 1972 is the only year where the Rallye cars are a separate model, designated by "JS" in the VIN. '73 and '74 only had "JH" cars and Rallye was an option, code A57. It's not a big deal, but that's what I know.
As 73Chally said, the "D" in the VIN on the title more than likely a typo. You should have 13 digits in your VIN, 5th being the engine code. For '72 there were 3 engine options, only 2 for the JS model, 318 and 340.
As 73Chally said, yes, it is possible that technically, there were Challenger R/Ts produced in 1972. I made a thread on this but I didn't get any really hard responses on this.
My car is a Challenger Rallye but on the Consumer Information sheet, my car is listed as a Challenger R/T. My car is an early production '72 model, SBD=8/17/71, so I don't know if that has anything to do with that but in my thread I asked if any other '72 Challenger owners had the "R/T' designation on any of their paperwork and there were no responses.
Pic of the CS sheet below.
Feel free to post whatever info you have of the car and we can give you our
on it. What ever it is, it's still a Challenger!