| Type: | CUST |
| Country: | Argentina |
| Grand Prix: | Buenos Aires |
| Date: | January 8 |
| Year: | 1950 |
| Official Name: | IV Gran Premio Eva Duarte de Perón |
| Season No: | 8 |
| Location: | Parco Palermo Buenos Aires |
| Course: | Public roads |
| Course Mi: | 3.022 |
| Course Km: | 4.865 |
| Distance Laps: | 30 |
| Distance Mi: | 90.689 |
| Distance Km: | 145.950 |
| Pole Driver: | Juan Manuel Fangio |
| Pole Team: | Ferrari 166C |
| Pole Time: | 2:29.9 (116.84 km/h) |
| Pole Country: | Argentina |
| Fast Driver: | Luigi Villoresi |
| Fast Team: | Ferrari 166FL |
| Fast Time: | 2:28.4 (118.02 km/h) |
| Fast Country: | Italy |
| First Driver: | Luigi Villoresi |
| First Team: | Ferrari 166FL |
| First Country: | Italy |
| Second Driver: | Dorino Serafini |
| Second Team: | Ferrari 125C |
| Second Country: | Italy |
| Third Driver: | Clemar Bucci |
| Third Team: | Alfa Romeo 12C-37 |
| Third Country: | Argentina |
Results from the 1950 Buenos Aires Grand Prix (also called IV Gran Premio Extraordinario Maria Eva Duarte de Perón) held at the Palermo Street Circuit in Buenos Aires on 8 January 1950.[1] [2]
| Pos | Driver | Constructor | Laps | Time/Retired | |
|---|---|---|---|---|---|
| 1 |  Luigi Villoresi | Ferrari 166 FL | 30 | 1:18:20.8 | |
| 2 | Dorino Serafini | Ferrari 125 C | 30 | 1:18:45.8 | |
| 3 |  Clemar Bucci | Alfa Romeo 12C-37 | 30 | 1:18:48.5 | |
| 4 | Juan Manuel Fangio | Ferrari 166 FL | 30 | 1:19:01.0 | |
| 5 | Felice Bonetto | Maserati 4CLT Milano | 30 | 1:19:29.8 | |
| 6 | Nino Farina | Maserati 4CLT | 30 | 1:20:08.8 | |
| 7 |  Louis Rosier | Talbot-Lago T26C | 30 | 1:20:35.0 | |
| 8 |  Reg Parnell | Maserati 4CLT | 30 | 1:20:39.0 | |
| 9 |  Prince Bira | Maserati 4CLT | 30 | 1:20:55.8 | |
| 10 | Peter Whitehead | Ferrari 125C | 29 | ||
| 11 | Clemente Biondetti | Maserati 4CLT | 29 | ||
| 12 | José Froilán González | Maserati 4CL | 27 | DNF | |
| Ret |  Louis Chiron | Maserati 4CLT | 23 | DNF | |
| Ret |  Eitel Cantoni | Maserati 4CL | 18 | DNF | |
| Ret | Piero Taruffi | Maserati 4CLT | 17 | DNF | |
| Ret |  Emmanuel de Graffenried | Maserati 4CLT | 17 | DNF | |
| Ret | Philippe Étancelin | Talbot-Lago T26C | 16 | DNF | |
| Ret | Piero Carini | Maserati 4CLT | 16 | DNF | |
| Ret | Alberto Ascari | Ferrari 166 FL | 5 | DNF | |
| Ret | Benedicto Campos | Ferrari 166 FL | DNF | ||
| Ret | Pascual Puopolo | Maserati 4CLT | DNF | ||
| Ret |  Manfred von Brauchitsch | Maserati 4CLT | DNS | ||
| Ret | Óscar Alfredo Gálvez | Alfa Romeo 308 | DNS |