I WAS IN A MAJOR ACCIDENT. CAR HIT ME AND BOUNCED MY VAN REAL HARD INTO CONCRETE WALL IN THE MIDDLE OF HIGHWAY. I BOUNCED OFF WALL, AND GOT KNOCKED INTO IT AGAIN. THE INPACK WAS SO BAD, IT KNOCKED MY ENGINE OUT, BUT YET NOT NEITHER ONE OF MY AIRBAGS POPPED. I WOULD REALLY LIKE TO KNOW WHY?*AK