I went up to Ingelhiem for Senner Tuning's 10 year celebration. They had their tuned 2012 S5 on display. A few things have changed since the release on the web, namely a lot of carbon fiber and new kicks. I didn't take any pics of the interior, but all of the plastic has been replaced with black carbon fiber...even the flat bottom of the steering wheel is carbon fiber. Mr. Senner told me that they will be making the front and rear more RS5-like and all of the badges will be blacked out (the rear Audi badge is finished but hasn't been put on the car yet since it wouldn't match anything). Mr. Senner was also nice enough to start it up and rev it a couple of times, not too much though as the engine was cold. Pics and video:
I definitely know where I'm going to get exhaust and a couple of other mods from when I take delivery of my 2013 S5!