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The 1957 Buenos Aires Grand Prix was a Formula Libre race held at Buenos Aires on 27 January 1957, at the Autódromo Oscar Alfredo Gálvez. The race was held over two heats of 30 laps each, with the result declared as an aggregate of the two. Juan Manuel Fangio finished first and third, his aggregate time giving him a win only 25 seconds ahead of Jean Behra's two second places.^[1][2] The race was run in extremely hot conditions which led to several cases of driver exhaustion, with some retiring and handing over to a team mate.^[3]

Classification

Pos	No	Driver	Entrant	Car	Time/Retired
1	2	Juan Manuel Fangio	Officine Alfieri Maserati	Maserati 250F	2h22m30.3, 119.18kph
2	6	Jean Behra	Officine Alfieri Maserati	Maserati 250F	+24.8s
3	12	Luigi Musso Peter Collins	Scuderia Ferrari	Lancia Ferrari D-50	+1:26.9
4	16	Mike Hawthorn	Scuderia Ferrari	Lancia Ferrari D-50	+2:05.3
5	14	Eugenio Castellotti Luigi Musso	Scuderia Ferrari	Lancia Ferrari D-50	+2:13.3
6	8	Carlos Menditéguy Stirling Moss	Officine Alfieri Maserati	Maserati 250F	+3:30.2
7	18	Cesare Perdisa	Scuderia Ferrari	Lancia Ferrari D-50	59 laps
8	20	Wolfgang von Trips Peter Collins	Scuderia Ferrari	Lancia Ferrari D-50	59 laps
9	28	Alejandro de Tomaso Luigi Piotti	Luigi Piotti	Maserati 250F	55 laps
10	22	Harry Schell	Scuderia Centro Sud	Maserati 250F	51 laps
Ret	10	Peter Collins Masten Gregory	Scuderia Ferrari	Lancia Ferrari D-50	40 laps
Ret	26	Enrique Sticoni	Scuderia Centro Sud	Maserati 250F	29 laps
Ret	4	Stirling Moss	Officine Alfieri Maserati	Maserati 250F	24 laps
Ret	30	José Froilán González	José Froilán González	Ferrari 625	23 laps
Ret	24	Giorgio Scarlatti	Scuderia Centro Sud	Maserati 250F	3 laps