iDrive Touch Controller.
The iDrive Touch Controller (part of Navigation System Professional) enables the Control Display to be conveniently operated with a single hand.
Thanks to the touchpad integrated into the Controller, it is easy to enter information such as destinations for the navigation system in handwriting. The Controller can also be rotated and pressed to access many functions, change various settings and scroll through lists. It can be easily and intuitively operated, as it is based on one's sense of touch. This makes life especially easy for the driver since it keeps distraction from traffic to an absolute minimum. All functions operated using the Controller can be viewed clearly in the Control Display.