Chrysler does offer a base V8 R/Tchallenger, i just told ya that in my last post. The article about the mustang is that its a base GT that the (dealer) is adding a roush supercharger to and honoring the warranty. This has nothing to do with FoMoCo
All you need is a dodge dealer willing to do the same thing using a base R/T 5.7 6 speed car, and honor the warranty.