WE WERE TRAVELING ON A ROAD AT 55 MPH. ANOTHER VEHICLE ABRUPTLY PULLED OUT IN FRONT OF US AT 10 MPH. OUR DRIVER ATTEMPTED TO AVOID COLLISION BY SWERVING TO THE RIGHT MEDIAN. THE IMPACT WAS OUR FRONT DRIVER SIDE HITTING THE OTHER DRIVER'S BACK PASSENGER SIDE. ACCORDING TO WITNESS STATEMENTS, OUR CAR WENT AIR BORN AND INTO A MULTIPLE SPIN SITUATION. WE TOOK OUT A GUARD RAIL. DAMAGE WAS SUSTAINED ON ALL SIDES OF THE VEHICLE, EXCEPT THE ROOF. VEHICLE WAS TOTALED. POLICE RULED FAULT WAS THE OTHER DRIVER. WE WERE WEARING SEAT BELTS. LUGGAGE FLEW OUT THE BACK WINDOW, APPROXIMATELY 30 FEET INTO THE ROAD. THE SIDE AIRBAGS DEPLOYED SUCCESSFULLY. NEITHER FRONT AIRBAG DEPLOYED. GLASS IN WINDSHIELD WAS SHATTERED, BUT PART OF THE GUARD RAIL (WE THINK) TOOK OUT THE GLASS IN A CIRCULAR PATTERN ON THE PASSENGER SIDE.