Circuito Costanera (Buenos Aires)
The Circuito Costanera , was a Grand Prix circuit in Buenos Aires. Two variants are known to have existed under Circuito "Avenida" Costanera and Costanera "Sur" which are listed by a few data sources as circuits used for the 1930, 1932 and 1936 Buenos Aires races. Verifiable records can only confirm the Costanera Norte circuit layouts for the 1951 V Gran Premio General Perón, V Gran Premio Eva Perón, Gran Premio Eva Perón Sport and the 1957 1000 km de Buenos Aires.
The 1951 circuit used a 3.50 km long layout of the wide service roads at the Jorge Newbery Airport and the connecting access loop at the south end of the air field. For the 1957 1000 km of Buenos Aires, the last race at Costanera Buenos Aires, the circuit layout was extended to a 10.219 km long configuration, utilizing the Parque Norte loop north of the airport complex.
Buenos Aires Grand Prix 1948 - 1950
1000 km Buenos Aires
| Year | Name | Circuit | Date | Winning drivers | Winning constructor | Regulations | Report |
| 1957 |  1000 km de Buenos Aires | Avenida Costanera | January 20 |  Masten Gregory Eugenio Castellotti Luigi Musso | Ferrari 290 MM | Sports car | Report |