1985 DETROIT GRAND PRIX IV - WARM UP
23 Jun 1985
Detroit Street Circuit, United States
| Pos. | No. | Driver | Team | Time / Gap |
|---|---|---|---|---|
| 1 | 12 | Ayrton SennaSEN | Lotus Renault | 1:44.877 |
| 2 | 5 | Nigel MansellMAN | Williams Honda | +0.336s |
| 3 | 11 | Elio de AngelisDEA | Lotus Renault | +1.133s |
| 4 | 2 | Alain ProstPRO | McLaren TAG | +1.270s |
| 5 | 16 | Derek WarwickWAR | Renault | +1.533s |
| 6 | 28 | Stefan JohanssonJOH | Ferrari | +1.576s |
| 7 | 27 | Michele AlboretoALB | Ferrari | +2.300s |
| 8 | 8 | Marc SurerSUR | Brabham BMW | +2.353s |
| 9 | 23 | Eddie CheeverCHE | Alfa Romeo | +2.643s |
| 10 | 18 | Thierry BoutsenBOU | Arrows BMW | +2.713s |
| 11 | 26 | Jacques LaffiteLAF | Ligier Renault | +2.800s |
| 12 | 3 | Martin BrundleBRU | Tyrrell Ford | +3.016s |
| 13 | 6 | Keke RosbergROS | Williams Honda | +3.153s |
| 14 | 22 | Riccardo PatresePAT | Alfa Romeo | +3.200s |
| 15 | 4 | Stefan BellofBEL | Tyrrell Ford | +3.300s |
| 16 | 15 | Patrick TambayTAM | Renault | +3.616s |
| 17 | 1 | Niki LaudaLAU | McLaren TAG | +3.826s |
| 18 | 25 | Andrea de CesarisDEC | Ligier Renault | +4.030s |
| 19 | 7 | Nelson PiquetPIQ | Brabham BMW | +4.913s |
| 20 | 17 | Gerhard BergerBER | Arrows BMW | +4.926s |
| 21 | 19 | Teo FabiFAB | Toleman Hart | +5.993s |
| 22 | 24 | Piercarlo GhinzaniGHI | Osella Alfa Romeo | +8.066s |
| 23 | 29 | Pierluigi MartiniMAR | Minardi Motori Moderni | +13.326s |
| 24 | 9 | Manfred WinkelhockWIN | RAM Hart | +18.070s |
| 25 | 10 | Philippe AlliotALL | RAM Hart | +22.140s |