Sunday 25th March 1973
The Vuelta de 25 de Mayo was a Turismo Carretera race held on a public road course around the town of 25 de Mayo, province of Buenos Aires, Argentina. In a country with the avidest passion for motor racing an enormous crowd invaded the roads as usual, and the racers drove at full speed beside the spectators. While watching the race, a father with his two young sons apparently decided to climb a railway embankment to view a more large stretch of the track. As they started to climb the embankment, several people shouted at them but suddenly all three were struck and killed by a train arriving from Buenos Aires. Possibly they did not hear the warnings nor the oncoming train due to the racing cars rumble. Winner of the race was Nasif Estéfano in a Ford Falcon, from Carlos Marincovich in a Chevrolet.