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. 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.
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