DRIVER SEAT BROKE INTO A RECLINING POSITION DURING REAR IMPACT COLLISION - AFTER BEING PUSHED INTO TWO OTHER VEHICLES, FOR FRONT END IMPACT, NEITHER NO AIRBAG DEPLOYED - I AM CONCERNED THAT HAD THE VEHICLE IMPACTED ME HARDER AND COME INTO THE BACK SEAT A LITTLE MORE, THE RECLINING DRIVER SEAT WOULD HAVE RESULTED IN SEVERE HEAD INJURIES IF NOT WORSE.*AK