Audi’s automatic parking systems operate by means of either ultrasound or cameras, which display images via the onboard monitor. One particularly convenient solution is park assist. When backing into a parking space, it performs all the necessary steering movements; it can handle both parallel parking and parking perpendicular to the street. The system finds a parking space with ultrasound sensors that scan the roadside in two dimensions while driving at moderate speed. The system notifies the driver via a message in the display once the sensors have found a space which is large enough.