Road powered electric vehicles (RPEV) (sometimes called roadway powered electric vehicles) collect any form of potential energy from the road surface to supply electricity to locomotive motors and ancillary equipment within the vehicle. Definition A Road Powered electric vehicle may be defined as a transport capsule with the following characteristics: The principal means of locomotion is one or more electric motor(s) The electric motors are powered by an electrical supply provided either from a battery (usually on-board) or power source (typically remote, and connected directly via conductive cables or magnetic inductive fields There is a defined roadway over which the vehicle travels (that means, although it may have some on-board battery reserve, is not intended to be a cross country vehicle) Where an external electric supply is provided, this is typically with overhead conductors or above-ground rails or (rarely) sub-surface electro-magnets. An all-electric vehicle typically requires one or more on-board energy supply elements or devices for autonomous operation, most commonly by chemical batteries, less frequently via electro-mechanical generators The electric vehicle further may include an on-board control system that directs energy from the energy storage elements, as needed, and converts such energy to electric motors used to propel the electric vehicle. A Road Powered Electric Vehicle therefore necessarily includes a system for supplying electricity from an external power source (such as a remote power station) through a network of power coupling elements which provide an integral and continuous power connection between origin and destination. Wireless energy transfer In USA Patent 6421600 these power coupling elements are electro-magnetic transmission coils embedded in the roadway and reception coils which are electrically resonant, so that they convert the magnetic flux above the road into electrical energy on the vehicle, which is entirely independent, since there is no mechanical or electrical link. The patent version of RPEV cited also includes: an on-board power meter to indicate the approximate consumption and an approximation of its remaining autonomous (battery) endurance or ranger range a wide bandwidth communications channel to allow information signals to be sent to, and received from, the RPEV while it is in use; automated garaging, a system that automatically connects power to the RPEV when it is in storage overnight, both to recharge the on-board batteries and power the on-board storage heater in cold weather so that it is comfortable for the driver and passengers. electronic coupling between two or more RPEVs so