^^^This. Between wife, kids, parents, and friends I have helped, I have probably special-ordered 20-25 cars in my lifetime. Dealers have ALWAYS locked in vehicle pricing at the time of ordering (not necessarily OTD pricing since some things can fluctuate). I have never had an issue with a dealer trying to renegotiate or raise the price at delivery. You always need to carefully read all the line items for hidden fees, of course. I wonder if in this case the dealer is not sure if he can get a 2023 for you, so wants to keep his options open in case it turns out to be a 2024 with 2024 pricing?
Anyway in view of some recent posts I poked around at some local dealers to see if they have started negotiating on 2023 SRT 392's or Hellcats....no dice...MSRP or higher still seems to be the standard around here.....