Autódromo Juan y Oscar Gálvez · 16 January 1955
| Pos | Team | Points Breakdown | Pts | |
|---|---|---|---|---|
| 1 | Mercedes Fangio 9 + Herrmann 1 + Moss 0 + Kling 0 | Fangio 9 + Herrmann 1 + Moss 0 + Kling 0 | 10 | |
| 2 | Ferrari González 2 + Farina 1 + Maglioli 1 + Trintignant 0 | González 2 + Farina 1 + Maglioli 1 + Trintignant 0 | 4 | |
| 3 | Maserati Mieres 2 + Mantovani 0 + Musso 0 + Bucci 0 + Schell 0 + Uria 0 + Behra 0 + Menditeguy 0 | Mieres 2 + Mantovani 0 + Musso 0 + Bucci 0 + Schell 0 + Uria 0 + Behra 0 + Menditeguy 0 | 2 | |
| 4 | Gordini Iglesias 0 + Bayol 0 + Birger 0 | Iglesias 0 + Bayol 0 + Birger 0 | 0 | |
| 5 | Lancia Castellotti 0 + Ascari 0 + Villoresi 0 | Castellotti 0 + Ascari 0 + Villoresi 0 | 0 |
| Pos | Driver | Team | Race time / Gap | Laps | Stops | Pts | |
|---|---|---|---|---|---|---|---|
| 1 | Juan Fangio Mercedes | Mercedes | 3:00:38.600 | 96 | — | 9 | |
| 2 | José Froilán González Ferrari | Ferrari | +1:29.600 | 96 | — | 2 | |
| 3 | Nino Farina Ferrari | Ferrari | — | 94 | — | 1 | |
| 3 | Umberto Maglioli Ferrari | Ferrari | — | 94 | — | 1 | |
| 4 | Hans Herrmann Mercedes | Mercedes | — | 94 | — | 1 | |
| 5 | Roberto Mieres Maserati | Maserati | — | 91 | — | 2 | |
| 8 | Sergio Mantovani Maserati | Maserati | — | 54 | — | — | |
| 8 | Luigi Musso Maserati | Maserati | — | 54 | — | — | |
| 9 | Clemar Bucci Maserati | Maserati | — | 54 | — | — | |
| 9 | Harry Schell Maserati | Maserati | — | 54 | — | — | |
| 10 | Jesús Iglesias Gordini | Gordini | — | 38 | — | — | |
| 11 | Maurice Trintignant Ferrari | Ferrari | — | 36 | — | — | |
| 12 | Eugenio Castellotti Lancia | Lancia | — | 35 | — | — | |
| 13 | Stirling Moss Mercedes | Mercedes | — | 29 | — | — | |
| 14 | Alberto Uria Maserati | Maserati | — | 22 | — | — | |
| 15 | Alberto Ascari Lancia | Lancia | — | 21 | — | — | |
| 16 | Élie Bayol Gordini | Gordini | — | 7 | — | — | |
| 17 | Jean Behra Maserati | Maserati | — | 2 | — | — | |
| 18 | Karl Kling Mercedes | Mercedes | — | 2 | — | — | |
| 19 | Luigi Villoresi Lancia | Lancia | — | 2 | — | — | |
| 20 | Pablo Birger Gordini | Gordini | — | 1 | — | — | |
| 21 | Carlos Menditeguy Maserati | Maserati | — | 1 | — | — |