Cellular and radio frequency data text messaging equipment, namely, modems, radio transmitters, receivers and antennas, satellite positioning and navigational receivers, LCD display units for text messaging; In-vehicle data communications modules to receive text messages; Modems; Radio transmitters, receivers and antennas; Satellite positioning and navigational receivers; LCD display units for text messaging; Roadside radio frequency transmitters; Broadcasting and relay equipment for sending text messages to passing motorists, namely, modems, radio transmitters, receivers and antennas, satellite positioning and navigational receivers, LCD display units for text messaging