The 1957 1000 km Buenos Aires took place on 20 January, on the Circuito de la Costanera Norte, for this event, was moved from its previous venue, the Autódromo Municipal-Avenida Paz, a 45,000 capacity motor racing circuit in Buenos Aires, Argentina built in which year?
Autódromo Juan y Oscar Gálvez The Autódromo de Buenos Aires Juan y Oscar Gálvez (official name) is a 45,000 capacity motor racing circuit in Buenos Aires, Argentina built in 1952 under president Juan Perón, named "Autódromo 17 de Octubre" after the date of Loyalty Day until Perón's overthrow. It was later renamed after Argentinian racing driver brothers, Juan Gálvez and Oscar Alfredo Gálvez.
1956 Formula One season The 1956 Formula One season featured the tenth season of FIA's Formula One motor racing. It featured the seventh World Championship of Drivers as well as numerous non-championship races. The championship series commenced on 22 January 1956 and ended on 2 September after eight races. Juan Manuel Fangio won his third consecutive title, the fourth of his career. Until the season this was the last season during which no British constructor won any championship race.