I WAS COMING OFF A RED LIGHT AND WAS HIT BY ANOTHER VEHICLE ON THE DRIVERS SIDE / FRONT DRIVERS SIDE OF THE CAR. THE OTHER VEHICLE WAS DRIVING AT LEAST 55 MPH AS THAT IS THE POSTED SPEED. I HAD TWO CHILDREN IN THE BACK. ONE IN A REAR FACING CAR SEAT. THE SEAT BELTS DID NOT ENGAGE. THE CAR SEAT FLIPPED TO THE SIDE . NO SIDE OR FRONT AIR BAGS WENT OFF.