I have just read that two functions have been added to the SRT8 for model year 2013. Another driving mode (Auto, Race & Track) I only have Sport on / off and a launch control. Are these differences in hardware or just software that I can activate / code in my 2012?

For the life of me, I cannot get my 2013 Charger SRT to kick into launch mode. I have hit the ESC button twice on the center console, only to have it turn off ESP and turn it back on. Am I missing something? Hitting the wrong button? Was there a system update that I missed?