I WAS DRIVING ON HIGHWAY 522 GOING 60MPH AT 11:30PM. THE HIGHWAY WAS SMOOTH AND HAD NO BUMPS THEN RANDOMLY THE WHEEL ON THE REAR PASSENGER SIDE BROKE OFF THE CAR AND WENT FLYING. POLICE OFFICERS AND STATE TROOPERS LOOKED FOR THE WHEEL AND THEY COULDN'T FIND IT. LUCKILY I REMEMBERED IN DRIVERS ED THAT WHEN A TIRE BLOWS OUT (EVEN THOUGH THIS SITUATION IS A LITTLE DIFFERENT) YOU FIRMLY HOLD ONTO THE STEERING WHEEL AND HOLD IT STRAIGHT. THE CAR THEN STRAIGHTENED OUT AND STOPPED ONCE I RAN INTO THE RAILING.