9 Apparatus for processing and transmitting data enabling the display of the number of users of the same apparatus and the distances separating them; apparatus intended for displaying and transmitting information on vehicle speed, distances between vehicles, speed limits, road traffic, weather conditions and hazards, hazardous traffic areas and radars; radar detectors; driver support assistants, namely, apparatus for processing and transmitting data on vehicle speed, the distances between vehicles, speed limits, road traffic and hazardous traffic areas; warning devices especially for hazardous traffic areas, namely, video cameras, electronic cameras, digital cameras, infrared cameras, and data recording cameras; vehicle data recorders for the return of essential data, in particular in connection with accidents; onboard electronic systems in vehicles for providing information to the driver on vigilance and/or state of fatigue; onboard electronic systems in vehicles for preventing the driver from sleeping; radar detectors; software for transmitting information on vehicle speed, distances between vehicles, speed limits, speed restrictions, road traffic, weather conditions and hazards, hazardous traffic areas and radars; speed indicators; signaling apparatus, namely, signal bells, transmitters of electronic signals; electronic speed controllers; cruise control devices for motor vehicles; computer terminals for storage, sending and receiving data enabling the display of the number of users of the same apparatus and the distances between them and data intended for warning devices especially for hazardous traffic areas; downloadable software and application software for portable and mobile communication devices for transmitting information on vehicle speed, distances between vehicles, speed limits, speed restrictions, road traffic, weather conditions and hazards, hazardous traffic areas and radars