THE VEHICLE TRANSMISSION WAS IN THE PARK POSITION WHILE WAITING ON A SLOW TRAIN. WHEN ENGAGING THE TRANSMISSION INTO THE DRIVE POSITION, AFTER THE TRAIN HAD PASSED, THE VEHICLE UNCONTROLLABLY FULLY ACCELERATED ON IT'S OWN. TO AVOID A SERIOUSLY COLLISION WITH ONCOMING TRAFFIC, THE DRIVER TURNED THE VEHICLE ON TO THE RAILROAD TRACKS WHERE IT CAME TO A STOP AFTER DAMAGING TWO WHEELS AND HIGH CENTERING ON THE TRACKS. THIS IS A VERY DANGEROUS VEHICLE. *NM