1. A system for convoying vehicles whereby a following vehicle is caused to follow a lead vehicle, comprising processing system for receiving data about a plurality of vehicles and selecting vehicles for linking in accordance with the data, long distance communications link for directing the candidate vehicles into proximity to one another, short range communications link for communicating among the candidate vehicles to cause the vehicles to move into a linked position, and vehicle control unit responsive to the short range communications link for managing vehicular functions to safely maintain a linked position among the vehicles.