iDrive Touch Controller.
The iDrive Touch Controller gives you convenient control of the iDrive system with one hand. Thanks to the touchpad integrated in the Controller, you can easily enter such information as destinations for the navigation system using your own handwriting.
You can also use it to access a wide range of functions and settings as well as for scrolling through lists. Operation is effortless and intuitive by means of touch - a great help for you as the driver since it barely distracts your concentration on the road. All functions operated using the Controller can be conveniently viewed in the Control Display.