WAS TRAVELING 70 MPH ON STATE HIGHWAY. WAS CUTOFF BY LARGE PICK-UP TRUCK. SWERVED OFF THE ROAD HIT A METAL SIGN TOOK IT DOWN. CONTINUED TO DRIVE UNTIL I HIT A FIELD THE SPEED WAS TOO HIGH FOR ME TO SLAM ON THE BREAKS. MY AIRBAG NEVER DEPLOYED CAUSING INJURY TO MY BACK. AN AIRBAG NOT DEPLOYING AT THAT HIGH OF A SPEED CONCERNS ME. THEY REPAIRED THE CAR WHICH I AM REALLY NOT COMFORTABLE DRIVING.