WHILE TRAVELING ON THE HIGHWAY AT APPROXIMATELY 75 MILES PER HOUR MY VEHICLE SUDDENLY STOPPED ACCELERATING AND SMOKE STARTED TO APPEAR FROM UNDER THE HOOD AND FROM THE TAIL OF THE VEHICLE. AFTER NEARLY BEING HIT BY A VEHICLE TRAVELING BEHIND MINE I WAS ABLE TO PULL OVER TO THE SHOULDER OF THE HIGHWAY AND EXIT THE VEHICLE I OBSERVED FLAMES AND SMOKE COMING FROM UNDER THE VEHICLE. THE FLAMES LUCKILY EXTINGUISHED ON THEIR OWN. AFTER HAVING THE VEHICLE TOWED TO THE HYUNDAI DEALERSHIP THEY CONFIRMED THAT THE ENGINE HAD FAILED AND THAT A PISTON HAD GONE THROUGH THE ENGINE WALL. THIS SEEMS TO BE A COMMON PROBLEM FOR HYUNDAI WITH THESE YEAR VEHICLE AND ENGINE TYPE SO I WANTED TO MAKE SURE TO REPORT THE INCIDENT.