When there is a destination location, switch between the destination and the location of the vehicle; when there is no destination location, return to the location of the vehicle on the map.
Switch between the destination and the vehicle location when there is a destination location, and return to the map car location when there is no destination location.
When the destination position is set, switch between the destination and the position of the vehicle; when the destination position is set, return to the position of the vehicle on the map.<BR>