This information was posted on allpar by an "insider":

"It will be interesting to see how they end up differentiating the three interiors as far as the I/P goes. Push-button start will be an option on the base model and standard on R/T and SRT. Three different radios will be used including of course MyGIG. But the A/C controls will be the same across the board and I haven't seen any mention of silver, carbon fiber or other color bezels."