vehicle assembly by moving a fingertip 30 upward or downward in the straight ahead position of the steering wheel a display 24 which is arranged on the hub element 10 may be provided for displaying that parameter of a motor vehicle assembly which is currently assigned to the extended functional face 21 the assigned parameter is represented on this display 24 in a way which is clearly recognizable by the driver of the vehicle preferably displays which require little installation space in particular film displays manufactured from oled organic light emitting diodes systems are suitable for this for the selection of the assigned parameter by the driver of the vehicle it is possible for example to provide a speech activated control device s which is equipped with a microphone m and which interacts with the motor vehicle on board computer c in this way it is possible in particular to perform comprehensive control processes and regulating processes for the functions of the hi fi system of the navigation system of the telephone system and or of the air conditioning system in combination with the speech activated controller with a slide controller which is embodied as an extended functional face 21 u2032 it would.