Tokyo saw the debut of the Audi Mobile Device fitted to the Metroproject Quattro. This impressive piece of technology performs a multitude of tasks for the modern Audi motorist both inside and outside of the vehicle. The Audi Mobile Device acts as an electronic car key allowing the driver to start the car amongst other car related functions. It is also a telephone, satellite navigation system as well as a music and video player. Fitting into the car’s centre console the Audi Mobile Device gives a glimpse of what the humble car key may well transform into.