WHILE DRIVING AT 35-40MPH AROUND A CURVE, I HAS PRESSED ON THE BRAKE PEDEL TO REDUCE SPEED AN THE VEHICLE FAILED TO RESPOND, BUT ACCELERATED IN SPEED WHILE STEERING BECAME INPOSSIBLE TO CONTROL, IT WAS IF THE VEHIICLE WAS CONTROLLING IT SELF. I HAD BEEN DROVE INTO AN THROUGH A DITCH AN OUT, HITTING A MAILBOX, CONCRETE LINED DRIVEWAY EXITING THE FIRST DITCH AN ENTERING ANOTHER ALSO HITTNG A STREET SIGN AS WELL AS A MILE MARKER SIGN, MY SEAT BELT FAILED TO LOCK WHICH LEAD MY HEAD TO REPEATEDLY HIT THE TOP OF VEHICLES WINDSHIELD AS WELL AS THE STEERING WHEEL. FUTHERMORE THE AIRBAG FAILED TO DEPLOY. I SUFFER FROM SEVER HEADACHES, MY VISION IN LT EYE ALTHOUGH INPROVED HAS GREATLY DECREASED, AS WELL AS MEMORY.