MEXICAN GRAND PRIX - PRACTICE 1
16 Jun 1991
Autódromo Hermanos Rodríguez, Mexico
| Pos. | No. | Driver | Team | Time / Gap |
|---|---|---|---|---|
| 1 | 1 | Ayrton SennaSEN | McLaren Honda | 1:17.829 |
| 2 | 5 | Nigel MansellMAN | Williams Renault | +0.151s |
| 3 | 6 | Riccardo PatresePAT | Williams Renault | +0.519s |
| 4 | 28 | Jean AlesiALE | Ferrari | +0.675s |
| 5 | 20 | Nelson PiquetPIQ | Benetton Ford | +1.161s |
| 6 | 19 | Roberto MorenoMOR | Benetton Ford | +1.787s |
| 7 | 2 | Gerhard BergerBER | McLaren Honda | +1.900s |
| 8 | 33 | Andrea de CesarisDEC | Jordan Ford | +1.982s |
| 9 | 16 | Ivan CapelliCAP | Leyton House Ilmor | +2.201s |
| 10 | 24 | Gianni MorbidelliMOR | Minardi Ferrari | +2.258s |
| 11 | 23 | Pierluigi MartiniMAR | Minardi Ferrari | +2.436s |
| 12 | 7 | Martin BrundleBRU | Brabham Yamaha | +2.569s |
| 13 | 14 | Olivier GrouillardGRO | Fondmetal Ford | +2.655s |
| 14 | 29 | Eric BernardBER | Lola Ford | +2.680s |
| 15 | 27 | Alain ProstPRO | Ferrari | +2.827s |
| 16 | 30 | Aguri SuzukiSUZ | Lola Ford | +2.828s |
| 17 | 11 | Mika HakkinenHAK | Lotus Judd | +2.887s |
| 18 | 22 | Jyrki JarvilehtoJAR | Dallara Judd | +3.200s |
| 19 | 12 | Johnny HerbertHER | Lotus Judd | +3.238s |
| 20 | 4 | Stefano ModenaMOD | Tyrrell Honda | +3.298s |
| 21 | 32 | Bertrand GachotGAC | Jordan Ford | +3.378s |
| 22 | 15 | Mauricio GugelminGUG | Leyton House Ilmor | +3.397s |
| 23 | 25 | Thierry BoutsenBOU | Ligier Lamborghini | +3.508s |
| 24 | 8 | Mark BlundellBLU | Brabham Yamaha | +3.509s |
| 25 | 17 | Gabriele TarquiniTAR | AGS Ford | +3.818s |
| 26 | 3 | Satoru NakajimaNAK | Tyrrell Honda | +4.123s |
| 27 | 26 | Erik ComasCOM | Ligier Lamborghini | +4.801s |
| 28 | 9 | Michele AlboretoALB | Footwork Porsche | +5.359s |
| 29 | 18 | Fabrizio BarbazzaBAR | AGS Ford | +5.613s |
| 30 | 10 | Stefan JohanssonJOH | Footwork Porsche | +6.583s |