Abstract: A vehicle-mounted device that includes: a memory; and a processor, wherein the processor is configured to: detect an own vehicle position; transmit position information that indicates the detected own vehicle position to a location outside the own vehicle, together with car model information that indicates a car model of the own vehicle; receive position information of another vehicle of a predetermined specific car model or map information that indicates a position of the other vehicle, from the location outside the own vehicle; and display the position of the other vehicle on a monitor as a map, based on a reception result.

Abstract: A navigation device that includes: a memory; and a processor that is configured to: acquire route information relating to a planned route to be traveled by a second vehicle of a user having a friendly relationship with a user of a first vehicle, search for a guided route based on a current position of the first vehicle and the route information, such that at least one of the first vehicle or the second vehicle heads toward a common location, and output route guidance information relating to the guided route to at least one of the first vehicle or the second vehicle.

Abstract: A vehicle-mounted device that includes: a memory; and a processor, wherein the processor is configured to: detect an own vehicle position; transmit position information that indicates the detected own vehicle position to a location outside the own vehicle, together with car model information that indicates a car model of the own vehicle; receive position information of another vehicle of a predetermined specific car model or map information that indicates a position of the other vehicle, from the location outside the own vehicle; and display the position of the other vehicle on a monitor as a map, based on a reception result.

Abstract: A navigation device that includes: a memory; and a processor that is configured to: acquire route information relating to a planned route to be traveled by a second vehicle of a user having a friendly relationship with a user of a first vehicle, search for a guided route based on a current position of the first vehicle and the route information, such that at least one of the first vehicle or the second vehicle heads toward a common location, and output route guidance information relating to the guided route to at least one of the first vehicle or the second vehicle.

Abstract: An image distribution device includes: a receiving section that receives a captured image captured by a first vehicle and position information relating to a position where the captured image has been captured; an identification section that identifies one or more second vehicles that are different from the first vehicle and that are heading toward the position indicated by the position information received by the receiving section; and a transmission section that transmits the captured image received by the receiving section to the one or more second vehicles identified by the identification section.