1951 Buenos Aires Grand Prix
Race Formula Libre of in the 1951 Formula One season
Race details
Date	February 18, 1951
Official name	V Gran Premio del General Juan Perón y de la Ciudad de Buenos Aires
Location	Aeroparque Costanera Buenos Aires
Course	Public roads
Course length	3.50 km (2.17 miles)
Distance	45 laps, 157.5 km (90.689 miles)
Pole position
Driver	Juan Manuel Fangio	Mercedes
Time	1:58.4 (106.42 km/h / 66.13 m/h)
Fastest lap
Driver	Juan Manuel Fangio	Mercedes
Time	2:02.4 (102.94 km/h / 63.96 m/h)
Podium
First	José Froilán González	Ferrari
Second	Hermann Lang	Mercedes
Third	Juan Manuel Fangio	Mercedes

The first of three 1951 Buenos Aires Grand Prix (official name: V Gran Premio del General Juan Perón y de la Ciudad de Buenos Aires) was a Formula Libre Grand Prix motor race that took place on February 18, 1951, at the Costanero Norte street circuit in Buenos Aires, Argentina.^[1]

Pos	Driver	Constructor	Laps	Time/Retired
1	José Froilán González	Ferrari 166 FL	45	1:35:18.9
2	Hermann Lang	Mercedes-Benz W154	45	1:35:35.3
3	Juan Manuel Fangio	Mercedes-Benz W154	45	1:36:10.4
4	Óscar Alfredo Gálvez	Ferrari 166 FL	44	1:36:25.0
5	Alfredo Pian	Maserati 4CL	44	1:36:55.0
6	Karl Kling	Mercedes-Benz W154	44	1:37:27.2
7	Pascual Puópolo	Maserati	43	1:36:08.4
8	Hector Niemitz	Alfa Romeo	42	1:35:19.0
9	Jorge Daponte	Maserati 4CLT	42	1:37:24.8
10	Carlos Menditeguy	Alfa Romeo 8C 308	41	1:36:29.8
11	José Felix Lopes	Simca-Gordini T-15	38	1:36:01.7
12	Clemar Bucci	Alfa Romeo 12C-37	33, DNF	1:11:20.2
Ret	Luis Alberto de Dios	Simca-Gordini T15	8	DNF
Ret	Roberto Miéres	Maserati	2	DNF
Ret	Onofre Marimón	Maserati		DNS
Ret	Alberto Crespo	Maserati		DNS
Ret	Viannini	Maserati 4CL		DNS
Ret	Victorio Rosa	Maserati		DNS
Ret	Eitel Cantoni	Maserati 4CL		DNS