Maybe its just me, but I am not sure what you are asking here. You asked "what am I looking for in performance car"? I would say only you can answer that; are you looking for a drag car, road racer, or something else. If you are asking how much performance (HP) the new Challengers have, just go to the website. I believe only the Hellcat and Demon have "track modes" (and the Viper of course).