The Buenos Aires Grand Prix was a motor race held in Buenos Aires, Argentina. The event was first held at the Costanera circuit from the early 1930s until 1936 and then continued in 1941 at the Retiro circuit. After a six-year break and General Juan Peron in office, racing resumed at Retiro in 1947 with the start of the South American "Temporada" Grand Prix series to be contested twice a year under Formula Libre regulations. Italian Luigi Villoresi won all 1947 Temporada events. The race regularly attracted Brazilian and European drivers and also Argentine drivers such as Juan Manuel Fangio and José Froilán González were now competing in Europe on a regular basis. For the 1948 Grand Prix season, the race was moved to the Palermo circuit where it would remain to host six of twelve "Peron Cu