WHILE DRIVING AT ANY SPEED VEHICLE HESITATED AND TOOK A DIP FORWARD AND DOWN TO THE GROUND. THEN, IT ACCELERATED AS IF NOTHING HAPPENED. CONSUMER'S DAUGHTER EXPERIENCED THE SAME THING WHILE DRIVING AND LOST CONTROL OF THE VEHICLE WHICH LANDED IN A DITCH. CONSUMER'S DAUGHTER SUSTAINED BACK INJURIES. CONSUMER WORE SEAT BELTS. HOWEVER, AIR BAGS FAILED TO DEPLOY. *AK