An onboard computer, included in a display device, has a sensing unit that is designed to sense the presence of at least one occupant in the motor vehicle. A control unit, also included in the display device, is coupled to the sensing unit and is designed to retrieve data from the sensing unit and also vehicle-related and surroundings-related data from the onboard computer that are suitable for characterizing a past travel behavior and/or influencing a future travel behavior. Also included in the display device is a display unit controllable by the control unit and designed to display the vehicle-related data retrieved by the control unit which is designed to control the display unit such that it displays the vehicle-related and surroundings-related data at least in part until the sensing unit senses that there is at least no longer a driver in the motor vehicle, to conveniently display a piece of information particularly for a stationary motor vehicle.