EntrantsGridGrand Prix
| Pos | Nr | Driver | Car | Engine | Tyre | Time | Laps |
|---|---|---|---|---|---|---|---|
| 1 | 16 |  Juan Manuel Fangio |
 Ferrari 166 FL [013F] |
Ferrari 166 FL V12C 2.0 | - | 02:25.000 | 0 |
| 2 | 10 | José Froilán González |
Ferrari 166 FL [011F] |
Ferrari 166 FL V12C 2.0 | - | 02:28.300 | 0 |
| 3 | 18 |  Robert Manzon |
Simca Gordini T15 [12GC] |
Gordini T18 L4 1.5 | - | 02:30.700 | 0 |
| 4 | 24 | Clemar Bucci |
Alfa Romeo 12C-37 [51204] |
Alfa Romeo 12C L12C 4.5 | - | 02:30.700 | 0 |
| 5 | 38 | Adolfo Schwelm Cruz |
Alfa Romeo Tipo 308 [50017] |
Alfa Romeo L8C 3.8 | - | 0 |
| Official Name | VI Gran Premio Juan Perón y de la Ciudad de Buenos Aires |
|---|---|
| Circuit | Buenos Aires |
| Date | March 9 |
| Pole | Juan Manuel Fangio 02:25.000 |
| Fastest Lap | Juan Manuel Fangio 02:29.500 |
| Podium | 1st Juan Manuel Fangio, 2nd José Froilán González, 3rd Chico Landi |
| Prev race | Grande Prêmio da Quinta da Boa Vista February 3 |
| Next race | Gran Premio di Siracusa March 16 |
| P | N | Driver | Team | Car | Engine | Tyre | Time | Laps | FL | Gr | Pts |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 16 | Juan Manuel Fangio |
Automovil Club Argentino | Ferrari 166 FL [013F] |
Ferrari 166 FL V12C 2.0 | - | 01:17:19.200 | 30 |
02:29.500 |
1 |
0 |
| 2 | 10 | José Froilán González |
Automovil Club Argentino | Ferrari 166 FL [011F] |
Ferrari 166 FL V12C 2.0 | - | 01:17:19.400 | 30 |
2 |
0 |
|
| 3 | 2 |  Chico Landi |
Francisco Landi | Ferrari 125 [04C] |
Ferrari 125 V12C 1.5 | - | 01:19:16.500 | 30 |
0 |
||
| 4 | 14 | Jorge Daponte |
Jorge Daponte | Maserati 4CLT/48 [1600] |
Maserati 4CL L4C 1.5 | - | +1 lap | 29 |
0 |
||
| 5 | 26 |  Eitel Cantoni |
E. Cantoni | Maserati 4CL |
Maserati 4CL L4C 1.5 | - | +1 lap | 29 |
0 |
||
| 6 | 6 | Carlos Menditeguy |
San Isidoro | Maserati 4CLT/48 [1605] |
Maserati 4CL L4C 1.5 | - | +2 laps | 28 |
0 |
||
| 7 | 30 | Asdrúbal Bayardo |
A. Fontes | Maserati 4CLT/48 [1608] |
Maserati 4CL L4C 1.5 | - | +2 laps | 28 |
0 |
||
| 8 | 28 | Hector Niemiz |
H. Niemitz | Alfa Romeo 8C-2900A [412002] |
Alfa Romeo L8C 2.9 | - | +3 laps | 27 |
0 |
||
| 9 | 22 | Rubem Abrunhosa |
A. P. Pires | Ferrari 125 [08C] |
Ferrari 125 V12C 1.5 | - | +3 laps | 27 |
0 |
||
| DNF | 32 | Alfredo Piàn |
A. Piàn | Maserati 4CLT/48 [1599] |
Maserati 4CL L4C 1.5 | - | DNF | 19 |
0 |
||
| DNF | 24 | Clemar Bucci |
C. Bucci | Alfa Romeo 12C-37 [51204] |
Alfa Romeo 12C L12C 4.5 | - | DNF | 10 |
4 |
0 |
|
| DNF | 12 | Nello Pagani |
Officine Alfieri Maserati | Maserati A6GCM [2032] |
Maserati A6G L6 2.0 | - | DNF | 6 |
0 |
||
| DNF | 20 | André Simon |
Équipe Gordini | Simca Gordini T15 [11GC] |
Gordini T18 L4 1.5 | - | DNF | 3 |
0 |
||
| DNF | 38 | Adolfo Schwelm Cruz |
J. M. Fangio | Alfa Romeo Tipo 308 [50017] |
Alfa Romeo L8C 3.8 | - | DNF | 2 |
5 |
0 |
|
| DNF | 18 | Robert Manzon |
Équipe Gordini | Simca Gordini T15 [12GC] |
Gordini T18 L4 1.5 | - | DNF | 1 |
3 |
0 |
|
| DNF | 34 | Alberto Crespo |
A. Crespo | Talbot-Lago T26C [110004] |
Talbot 23 CV L6 4.5 | - | DNF | 0 |
0 |
||
| DNF | 36 | Alberto Rodriguez Larreta |
A. Larreta | Maserati 4CL |
Maserati 4CL L4C 1.5 | - | DNF | 0 |
0 |
||
| DNF | 8 | Francisco Marques |
Escuderia Bandeirantes | Maserati 4CLT/48 |
Maserati 4CL L4C 1.5 | - | Differential | 0 |
0 |
||
| DNA | 4 | Pinheiro Pires |
A. P. Pires | Talbot-Lago T26C [110008] |
Talbot 23 CV L6 4.5 | - | DNA | 6 |
0 |