SLID OFF ROAD, DRIVERS TIRES BLEW OUT VEHICLE ROLLED TWICE. DRIVER NOR PASSENGER SEATBELT RESTRAINED UPPER BODY. DRIVER'S HEAD WEDGED UNDER STEERING WHEEL AND UPPER LEFT BACK SHOULDER AND ARM EXITED THE VEHICLE. ROOF CAVED IN ON DRIVER, RESULTING IN MULTIPLE BREAKS, FRACTURES AND PARTIAL PARALLIZATION. PASSENGERS LEGS HIT CHEST FROM LACK OF RESTRAINING SEATBELT. *AK