DRIVER'S SEAT BACK BROKEN AND FRONT PASSENGER SEAT TWISTED AFTER REAR END COLLISION. VEHICLE WAS STATIONARY ON A HIGHWAY WHEN STRUCK FROM BEHIND BY ANOTHER VEHICLE GOING IN EXCESS OF 65 MPH. MY VEHICLE WAS MOVED 30 FEET FROM POINT OF IMPACT. FORCE OF IMPACT BROKE DRIVER'S SEAT BACK. DRIVER WEIGHS 220 LBS. FRONT PASSENGER SEAT WAS TWISTED LEFT. PASSENGER WEIGHS LESS THAN 110 LBS. BOTH OCCUPANTS INJURED.