There was a post on another site that said the new system in the Challenger will be keyless (called "Keyless-Go"). All you will have to do is press the button on the key fob to start the car. In addition, the system has "proximity entry", so you can simply walk up to the vehicle and the doors will automatically unlock.

Also, the Start button will be on the dash and the 0-60 timer will be like LX models, in the EVIC display.