Audi has a full mockup of the new TT's interior at CES right now, with the main feature being the full-dash display. While not terribly new or exciting (a few supercars and the Tesla Model S already do this), they do have a couple little neat design touches that make it a nice experience.
It still has the traditional knob/stick for navigating through menus, but also has a little touch pad that you can write out letters on (think about the original Palm Pilot for you older nerds like me) with your finger. That keeps you from scrolling back and forth through the alphabet to type things out.
The touch I really like is the climate controls in the middle of the center vents. Just turn the knob up and down to set the temperature.