Abstract: The invention relates to an adjustable motor vehicle seat with at least one of a horizontal seat adjustment, a seat height adjustment, a seat depth adjustment, and a seat back adjustment, as well as with a neck rest that is adjustable by an electric motor and guided by at least one sensor unit which is influenced by the size of the user, wherein the neck rest adjustment is controlled by an electronics unit which evaluates the sensor signals. An object of the present invention is to provide an economical vehicle seat which is independent of the level of equipment of the vehicle, wherein the neck rest is moved automatically in dependence on sensed parameters which take into account the body size of the user. This is achieved in that the electronics unit is mounted in the region of the neck rest which is adjustable by electric motor.