Forgot about AMG, Brabus, Carlsson, Lorinser and RennTech tuned cars. There is a new Mercedes Tuner to go with - MIB!
Have you seen the new tuned version of the W211 E-Class - the E55-MIB. It has optional Remote Driver Control with Holographic Retractable Driver Image. Check it out:
http://www.ifilm.com/ifilm/media/standalone/wmp_player/0,4810,2419284_200,00.html