A support of the operator of the motor vehicle is to be provided in all traffic situations in a simple manner and with low costs, without overburdening the operator of the motor vehicle. In this context, in the following or tracking operation, in which a regulation of the speed of the motor vehicle dependent on the spacing distance to detected target objects that are classified as relevant is carried out, the relevant target objects used for the speed regulation are selected by the operation of an operating element to be operated by the operator of the motor vehicle.