# 1978 BRDC International Trophy

The XXX BRDC International Trophy was a non-championship motor race for Formula One cars held on 19 March 1978 at the Silverstone Circuit, England. It was the 30th running of the International Trophy, and the last to non-Championship Formula One regulations. The race was held over 40 laps of the Silverstone circuit, for a total distance of around 189 kilometres (117 miles).
Although qualifying sessions had been dry, the race was run in torrential rain, resulting in multiple accidents and drivers spinning off. The race was eventually won by Keke Rosberg, his first victory in a Formula One car in only his second ever Formula One race.

## Classification
### Qualifying

| Pos. | No. | Driver | Constructor | Q1 | Q2 | Gap |
| 1 | 6 | Ronnie Peterson | Lotus-Ford | 1:16.85 | 1:16.07 | — |
| 2 | 1 | Niki Lauda | Brabham-Alfa Romeo | 1:17.47 | 1:16.43 | +0.36 |
| 3 | 5 | Mario Andretti | Lotus-Ford | 1:16.60 | 1:17.19 | +0.53 |
| 4 | 7 | James Hunt | McLaren-Ford | 1:16.85 | 1:17.18 | +0.78 |
| 5 | 30 | Brett Lunger | McLaren-Ford | 1:19.13 | 1:17.77 | +1.70 |
| 6 | 3 | Patrick Depailler | Tyrrell-Ford | 1:18.64 | 1:17.98 | +1.91 |
| 7 | 16 | Hans Stuck Jr. | Shadow-Ford | 1:21.48 | 1:18.15 | +2.08 |
| 8 | 14 | Emerson Fittipaldi | Fittipaldi-Ford | 1:18.44 | 1:18.92 | +2.37 |
| 9 | 38 | Derek Daly | Hesketh-Ford | 1:19.57 | 1:18.88 | +2.81 |
| 10 | 18 | Rupert Keegan | Surtees-Ford | 1:18.96 | 1:19.10 | +2.89 |
| 11 | 32 | Keke Rosberg | Theodore-Ford | 1:19.03 | 1:19.54 | +2.96 |
| 12 | 28 | Emilio de Villota | McLaren-Ford | 1:19.85 | 1:19.36 | +3.29 |
| 13 | 22 | Jacky Ickx | Ensign-Ford | 1:21.18 | 1:20.00 | +3.93 |
| 14 | 31 | René Arnoux | Martini-Ford | 1:20.34 | 1:20.09 | +4.02 |
| 15 | 40 | Tony Trimmer | McLaren-Ford | 1:20.51 | 1:20.43 | +4.36 |
| 16 | 17 | Clay Regazzoni | Shadow-Ford | 1:20.63 | 1:21.26 | +4.56 |
| DNQ | 24 | Divina Galica | Hesketh-Ford | 1:28.45 | 1:23.07 | +7.00 |
| Source: |||||||

### Race

| Pos | Driver | Entrant | Constructor | Time/Retired | Qual |
| 1 | Keke Rosberg | Theodore Racing | Theodore-Cosworth | 1:12:49.02 | 11 |
| 2 | Emerson Fittipaldi | Copersucar Fittipaldi | Fittipaldi-Cosworth | + 1.88 | 8 |
| 3 | Tony Trimmer | Melchester Racing | McLaren-Cosworth | + 3 Laps | 15 |
| 4 | Brett Lunger | BS Fabrications | McLaren-Cosworth | + 3 Laps | 7 |
| 5 | Rupert Keegan | Durex Team Surtees | Surtees-Cosworth | + 9 Laps | 10 |
| NC | Hans Stuck Jr. | Villiger Kiel Team Shadow | Shadow-Cosworth | + 15 Laps | 5 |
| Ret | Derek Daly | Olympus Hesketh | Hesketh-Cosworth | Accident | 9 |
| Ret | Divina Galica | Olympus Hesketh | Hesketh-Cosworth | Accident | DNQ* |
| Ret | Emilio de Villota | Centro Asegurador | McLaren-Cosworth | Clutch | 12 |
| Ret | Patrick Depailler | Team Tyrrell | Tyrrell-Cosworth | Accident | 6 |
| Ret | Mario Andretti | John Player Team Lotus | Lotus-Cosworth | Accident | 3 |
| Ret | Ronnie Peterson | John Player Team Lotus | Lotus-Cosworth | Handling | 1** |
| Ret | Jacky Ickx | Tissot Ensign | Ensign-Cosworth | Spun Off | 13 |
| Ret | Clay Regazzoni | Villiger Kiel Team Shadow | Shadow-Cosworth | Spun Off | 16 |
| Ret | James Hunt | Marlboro Team McLaren | McLaren-Cosworth | Spun Off | 4 |
| DNS | Niki Lauda | Parmalat Brabham | Brabham-Alfa Romeo | Spun off | 2 |
| DNS | René Arnoux | Automobiles Martini | Martini-Cosworth | Withdrew | 14 |
| DNA | Jochen Mass | ATS Wheels Racing | ATS-Cosworth | | |
| DNA | Lamberto Leoni | Tissot Ensign | Ensign-Cosworth | | |
| DNA | Arturo Merzario | Merzario Racing | Merzario-Cosworth | | |
| DNA | Guy Edwards | Team March | March-Cosworth | | |
    * Failed to qualify, but started as first reserve driver after Lauda and Arnoux withdrew.
    ** Started from the pit lane.