AT HIGHWAY SPEED (75MPH) A BOOM NOISE WAS HEARD FROM THE FRONT OF THE VEHICLE JUST AFTER CONTACTING THE WARNING STRIP ON THE HIGHWAY. VEHICLE BEGAN TO SWERVE AND FISHTAIL THEN FLIPPED END OVER END 3-4 TIMES APPROX. ONE - TWO HUNDRED YARDS DOWN THE HIGHWAY. INJURED BUT EXPERIENCED DRIVER WAS SUSPICIOUS OF A POSSIBLE SUSPENSION OR STEERING FAILURE AND CONCERNED THAT AIR-BAGS DID NOT DEPLOY. *TR