There is nobody I know of planning to run Challengers in IMSA, for now or in the foreseeable future. The newest Viper ACR is ok for SCCA Trans Am GT and Super GT. The Challenger ACR would, I assume, be acceptable in those classes, too. I know of several parties “looking into” running Mopars in those classes. Several ACR-X’s are run in those classes, and they are extremely competitive. The newer ACR would be even faster. I think the leap to the new car is too much for some teams, as it isn’t race ready. Fast it would be, though. I doubt anyone would run the Challenger ACRs, unless they were allowed serious weight reductions, and other mods to bring them into a competitive balance within the class. If I were to get back into racing, and I was going to do it in Mopars, I honestly don’t know what I would do. There is simply nothing out there to run if you’re a low buck circuit racer, except ratted out Neons and SRT-4’s. This ACR will be great, it what Dodge really needs is a carp load of budget door bangers out there, in the tradition of the SRT-4 and the Neon ACR. Something a guy paying for college kids and saving for retirement can run on a budget. I suppose I could go the Lemons route, but that has absolutely no interest for me.