- Winner
- Mario Andretti
- Team
- Team Lotus
- Top listed
- Mario Andretti, Niki Lauda, and Patrick Depailler
- Race date
- January 15, 1978
- Pole
- Mario Andretti
- Fastest lap
- Gilles Villeneuve
- Classified drivers
- 27
- Circuit
- Autódromo Juan y Oscar Gálvez
The decisive result
Mario Andretti finished first for Team Lotus. Niki Lauda is listed 2 for Brabham, with Patrick Depailler 3 for Tyrrell.
Grid to finish
Brett Lunger from P24 to P13 (+11), Didier Pironi from P23 to P14 (+9), and Emerson Fittipaldi from P17 to P9 (+8) recorded the largest positive grid-to-finish changes in the classification. Mario Andretti started from the listed P1 grid position.
Status and fastest lap
The classification lists 11 Finished, 4 +1 lap, 3 DNQ, 3 Engine, and 2 +2 laps. Gilles Villeneuve holds the fastest-lap entry at 1:49.760 on lap 3. It records the result without speculating about incidents or strategy.
This summary sticks to the classification and does not speculate about incidents, strategy, weather, or causes. Source: F1DB (CC BY 4.0) · updated Jul 26, 2026.