MediaEntrantsGridGrand Prix
| Pos | Nr | Driver | Car | Engine | Tyre | Time | Laps |
|---|---|---|---|---|---|---|---|
| 1 | 36 |  Giuseppe Farina |
Ferrari 166C [04C] |
Ferrari 166C V12 2.0 | – | 03:53.200 | 0 |
| 2 | 22 | Alberto Ascari |
Maserati 4CLT/48 [1593] |
Maserati 4CL L4C 1.5 | – | 03:57.400 | 0 |
| 3 | 2 |  Chico Landi |
Maserati 4CL |
Maserati 4CL L4C 1.5 | – | 04:00.600 | 0 |
| 4 | 6 | Jaime das Neves |
Alfa Romeo Tipo 308 |
Alfa Romeo L8C 3.0 | – | 04:03.200 | 0 |
| 5 | 8 | Francisco Marques |
Maserati 4CL |
Maserati 4CL L4C 1.5 | – | 04:06.300 | 0 |
| 6 | 12 | Francisco Credentino |
Maserati 8CM |
Maserati 8CM L8C 3.0 | – | 04:17.500 | 0 |
| 7 | 32 | Luigi Villoresi |
Maserati 4CLT/48 [1594] |
Maserati 4CL L4C 1.5 | – | 04:45.900 | 0 |
| 8 | 10 | Hans Ravache |
Alfa Romeo 8C-2300 Monza |
Alfa Romeo L8C 2.3 | – | 0 | |
| 9 | 14 | Antonio Parra |
Alfa Romeo Tipo B/P3 [50010] |
Alfa Romeo L8C 3.2 | – | 0 | |
| 10 | 4 | Moacyr Leite |
Maserati 6CM |
Maserati 6CM L6C 1.5 | – | 0 | |
| 11 | 16 |  Antonio Fernandes da Silva |
Maserati 4CL |
Maserati 4CL L4C 1.5 | – | 0 | |
| 12 | 20 | Osmar Lage |
Maserati 4CM |
Maserati 4CM L4C 1.5 | – | 0 |
| Official Name | IV Grande Prêmio da Cidade de São Paulo |
|---|---|
| Circuit | Interlagos |
| Date | March 20 |
| Pole | Giuseppe Farina 03:53.200 |
| Fastest Lap | Giuseppe Farina 03:47.500 |
| Podium | 1st Luigi Villoresi (12) , 2nd Francisco Marques, 3rd Antonio Fernandes da Silva |
| Prev race | Gran Premio General San Martín February 27 |
| Next race | Grande Prêmio do Rio de Janeiro March 27 |
| P | N | Driver | Team | Car | Engine | Tyre | Time | Laps | FL | Led | Gr | Pts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 32 | Luigi Villoresi |
Scuderia Ambrosiana | Maserati 4CLT/48 [1594] |
Maserati 4CL L4C 1.5 | – | 01:20:30.900 | 20 | 12 | 7 | 0 | |
| 2 | 8 | Francisco Marques |
F. Marques | Maserati 4CL |
Maserati 4CL L4C 1.5 | – | 01:22:50.800 | 20 | 0 | 5 | 0 | |
| 3 | 16 | Antonio Fernandes da Silva |
A. F. da Silva | Maserati 4CL |
Maserati 4CL L4C 1.5 | – | 01:22:51.700 | 20 | 0 | 11 | 0 | |
| 4 | 22 | Alberto Ascari |
Scuderia Ambrosiana | Maserati 4CLT/48 [1593] |
Maserati 4CL L4C 1.5 | – | +1 lap | 19 | 2 | 2 | 0 | |
| 5 | 12 | Francisco Credentino Chico Landi |
F. Credentino | Maserati 8CM |
Maserati 8CM L8C 3.0 | – | +1 lap | 11 8 |
0 1 |
6 | 0 0 |
|
| 6 | 10 | Hans Ravache |
H. Ravache | Alfa Romeo 8C-2300 Monza |
Alfa Romeo L8C 2.3 | – | +7 laps | 13 | 0 | 8 | 0 | |
| DNF | 36 | Giuseppe Farina |
Scuderia Ferrari | Ferrari 166C [04C] |
Ferrari 166C V12 2.0 | – | Wheel | 15 | 03:47.500 | 5 | 1 | 0 |
| DNF | 20 | Osmar Lage |
O. Lage | Maserati 4CM |
Maserati 4CM L4C 1.5 | – | DNF | 8 | 0 | 12 | 0 | |
| DNF | 2 | Chico Landi |
Francisco Landi | Maserati 4CL |
Maserati 4CL L4C 1.5 | – | Mechanical | 7 | 0 | 3 | 0 | |
| DNF | 6 | Jaime das Neves |
J. das Neves | Alfa Romeo Tipo 308 |
Alfa Romeo L8C 3.0 | – | DNF | 7 | 0 | 4 | 0 | |
| DNF | 14 | Antonio Parra |
A. Parra | Alfa Romeo Tipo B/P3 [50010] |
Alfa Romeo L8C 3.2 | – | Oil line | 4 | 0 | 9 | 0 | |
| DNF | 4 | Moacyr Leite |
M. Leite | Maserati 6CM |
Maserati 6CM L6C 1.5 | – | Oil leak | 3 | 0 | 10 | 0 | |
| DNA | 18 | Gino Bianco |
A. José Pereira | Maserati 8CM [3007] |
Maserati L8C 3.2 | – | DNA | 0 | 0 | 0 | ||
| DNA | 28 | Annuar de Góes |
A. de Góes | Maserati 6CM |
Maserati 6CM L6C 1.5 | – | DNA | 0 | 0 | 0 | ||
| DNA | 30 | Aloysio Fontenelle |
A. Fontenelle | Alfa Romeo 8C-2300 Monza [2211135] |
Alfa Romeo L8C 2.3 | – | DNA | 0 | 0 | 0 | ||
| DNA | 40 | Henrique Casini |
H. Casini | Alfa Romeo Tipo 308 [50016] |
Alfa Romeo L8C 3.0 | – | DNA | 0 | 0 | 0 |