1.1 Background and expected benefits of first-mount OBEIt could be foreseen that in future the DSRC OBE will be delivered by car manufacturer as a feature of the vehicle as they do today with car radio which are parts of the most sold vehicles. For the vehicle owner, the OBE supplier is the car manufacturer acting as an OEM (Original Equipment Manufacturer).The integration of first mount OBE by car manufacturer is the only way to create a future mass market for EFC application based upon DSRC as well as GNSS/CN, as at present the integration of this type of OBEs cannot be achieved except for heavy goods vehicles. Regarding DSRC, this is also an opportunity