| Type: | CUST |
| Country: | Netherlands Antilles |
| Grand Prix: | Curaçao |
| Year: | 1985 |
| Official Name: | Curaçao Grand Prix |
| Location: | Willemstad Street Circuit |
| Course: | Asphalt |
| Course Mi: | 2.206 |
| Course Km: | 3.550 |
| Distance Laps: | 58 |
| Distance Mi: | 128,687 |
| Distance Km: | 205.900 |
| Weather: | Overcast |
| Pole Driver: | Mike Thackwell |
| Pole Country: | NZL |
| Pole Team: | Ralt Racing |
| Pole Time: | 1:41.895 |
| Fast Driver: | John Nielsen |
| Fast Team: | Ralt Racing |
| Fast Time: | 1:44.725 |
| Fast Country: | DEN |
| First Driver: | John Nielsen |
| First Country: | DEN |
| First Team: | Ralt Racing |
| Second Driver: | Ivan Capelli |
| Second Country: | ITA |
| Second Team: | Genoa Racing |
| Third Driver: | Claudio Langes |
| Third Country: | ITA |
| Third Team: | Eddie Jordan Racing |
The 1985 Curaçao Grand Prix was a one-off Formula 3000 race held in Willemstad, Curaçao on 13 October 1985. The race was organised by the SCCA. The Grand Prix was run in the streets of the city. As the track was very slippery the cars initially used wet weather tires. During the race the cars ran on qualifier tires.[1] John Nielsen won the 58 lap race with a 21-second lead over Ivan Capelli.
| Pos. | No. | Driver | Team | Chassis | Time | Grid | |
|---|---|---|---|---|---|---|---|
| 1 | align=center | 1 |  Mike Thackwell | Ralt Racing | Ralt RB20 | 1:41.895 | 1 |
| 2 | align=center | 34 |  Ivan Capelli | Genoa Racing | March 85B | 1:43.023 | 2 |
| 3 | align=center | 2 |  John Nielsen | Ralt Racing | Ralt RB20 | 1:43.213 | 3 |
| 4 | align=center | 8 |  Christian Danner | BS Automotive | March 85B | 1:43.696 | 4 |
| 5 | align=center | 25 | Claudio Langes | Eddie Jordan Racing | March 85B | 1:43.760 | 5 |
| 6 | align=center | 33 | Guido Daccò | Sanremo Racing | March 85B | 1:45.890 | 6 |
| 7 | align=center | 35 |  Alain Ferté | Onyx Race Engineering | March 85B | 1:46.174 | 7 |
| 8 | align=center | 7 |  Johnny Dumfries | BS Automotive | March 85B | 1:46.590 | 8 |
| 9 | align=center | 9 | Emanuele Pirro | Onyx Race Engineering | March 85B | 1:46.751 | 9 |
| 10 | align=center | 14 | Alessandro Santin | Sanremo Racing | March 85B | 1:47.532 | 10 |
| 11 | align=center | 10 |  John Jones | Onyx Race Engineering | March 85B | 1:47.532 | 11 |
| 12 | align=center | 22 | Lamberto Leoni | Corbari Italia | March 85B | 1:48.087 | 12 |
| 13 | align=center | 21 | Stefano Livio | Corbari Italia | March 85B | 1:48.097 | 13 |
| 14 | align=center | 3 | Michel Ferté | Oreca | March 85B | 1:48.647 | 14 |
| 15 | align=center | 15 | Gabriele Tarquini | Lola Motorsport | Lola T950 | 1:49.465 | 15 |
| 16 | align=center | 13 | Aldo Bertuzzi | Sanremo Racing | March 85B | 1:49.984 | 16 |
| 17 | align=center | 16 | Fulvio Ballabio | Lola Motorsport | Lola T950 | 1:50.152 | 17 |
| 18 | align=center | 23 |  Eric Lang | Ekström Racing | March 85B | 1:51.761 | 18 |
| 19 | align=center | 26 |  Slim Borgudd | Roger Cowman Racing | Arrows A6 | 1:53.656 | 19 |
| 20 | align=center | 4 |  Pierre Chauvet | Oreca | March 85B | 2:04.993 | 20 |
| [2] | |||||||
| Pos. | No. | Driver | Team | Chassis | Laps | Time/Retired | Grid | |
|---|---|---|---|---|---|---|---|---|
| 1 | 2 | John Nielsen | Ralt Racing | Ralt RT20 | 58 | 1:41:29.572 | 3 | |
| 2 | align=center | 34 | Ivan Capelli | Genoa Racing | March 85B | 58 | + 21.400 | 2 |
| 3 | align=center | 25 | Claudio Langes | Eddie Jordan Racing | March 85B | 58 | 5 | |
| 4 | align=center | 8 | Christian Danner | BS Automotive | March 85B | 58 | 4 | |
| 5 | align=center | 35 | Alain Ferté | Onyx Race Engineering | March 85B | 58 | 7 | |
| 6 | align=center | 9 | Emanuele Pirro | Onyx Race Engineering | March 85B | 57 | + 1 lap | 9 |
| 7 | align=center | 14 | Alessandro Santin | Lola Motorsport | Lola T950 | 56 | + 2 laps | 10 |
| 8 | align=center | 10 | John Jones | Onyx Race Engineering | March 85B | 56 | + 2 laps | 11 |
| 9 | align=center | 16 | Fulvio Ballabio | Sanremo Racing | March 85B | 51 | + 7 laps | 17 |
| 10 | align=center | 13 | Aldo Bertuzzi | Sanremo Racing | March 85B | 51 | + 7 laps | 16 |
| NC | align=center | 26 | Slim Borgudd | Roger Cowman Racing | Arrows A6 | 35 | Not classified | 19 |
| Ret | align=center | 15 | Gabriele Tarquini | Lola Motorsport | Lola T950 | 49 | Accident | 15 |
| Ret | align=center | 3 | Michel Ferté | Oreca | March 85B | 47 | Electrics | 14 |
| Ret | align=center | 22 | Lamberto Leoni | Combari Italia | March 85B | 46 | Brakes | 12 |
| Ret | align=center | 33 | Guido Daccò | Sanremo Racing | March 85B | 40 | Gearbox | 40 |
| Ret | align=center | 23 | Eric Lang | Ekström Racing | March 85B | 38 | Engine | 18 |
| Ret | align=center | 21 | Stefano Livio | Combari Italia | March 85B | 37 | Accident | 13 |
| Ret | align=center | 7 | Johnny Dumfries | BS Automotive | March 85B | 32 | Accident | 8 |
| Ret | align=center | 4 | Pierre Chauvet | Oreca | March 85B | 21 | Accident | 20 |
| DNS | align=center | 1 | Mike Thackwell | Ralt Racing | Ralt RT20 | 0 | Electrics | 1 |
| Fastest Lap
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Around the same time the event organisers planned the event to become part of the Formula One calendar in the future. While the event was praised by press and public, the plans for Formula One race ended as the track would have needed substantial improvements to meet the FIA requirements to host Formula One event. A second Curaçao Grand Prix was scheduled as part of the 1986 International Formula 3000 Championship, but it was eventually dropped from the calendar.[3] [4]