THE VEHICLE WAS BEING DRIVEN AT THE SPEED LIMIT WHEN THE TIRE POPPED. THE IMPACT WAS AS MUCH AS A FRONT END COLLISION; THE WINDSHIELD CRACKED ALONG WITH THE PASSENGER SIDE OF THE BUMPER AND THE WHEEL WAS BENT. A MECHANIC SAID THAT BECAUSE THE SEAT BELTS LOCKED THE IMPACT WAS GREAT ENOUGH WHERE THE AIRBAGS SHOULD HAVE GONE OFF, BUT THEY DID NOT.