CONSUMER WAS STOPPED AT A STOP SIGN WITH 2 VEHICLES IN FRONT, CONSUMER WAS 20 FEET FROM CAR IN FRONT. CONSUMER NOTICED SOMETHING WHITE IN REAR MIRROR, AND WITHIN SECONDS, CONSUMER WAS REAR ENDED AT ABOUT 40 MPH BY OTHER VEHICLE. NONE OF AIRBAGS DPLOYED. IF CONSUMER DIDN'T HAVE A SEAT BELT ON WOULD HAVE BEEN KNOCKED THROUGH WINDOW. *AK