VEHICLE IMPACTED A HORSE IN ROAD AT A SPEED OF 45 MPH. IMPACT WAS HEAD-ON. LEGS OF THE HORSE CONTACTED THE FRONT BUMPER PROPELLING THE HORSE INTO THE WINDSHIELD AND ONTO THE ROOF.THE CAR SUSTAINED MAJOR DAMAGE TO THE FRONT. ALTHOUGH THERE WAS SIGNIFICANT DENTING OF THE BUMPER THE AIR BAGS FAILED TO DEPLOY. THE ROOF OVER THE FRONT PASSENGER HAD MAJOR CRUSHING INCLUDING THE DRIVER'S FRONT PILLA. *AK