1957 1000 km Buenos Aires

The 1957 1000 km Buenos Aires took place on 20 January, on the Circuito de la Costanera Norte, (Buenos Aires, Argentina). It was the fourth running of the race, and once again, it was opening round of the F.I.A. World Sports Car Championship. For this event, was moved from its previous venue, the Autódromo Municipal-Avenida Paz, only to return to the Autódromo in 1958.