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1991 Season
o  Season Overview
o  Points Graph
o  Drivers' Championship
o  Constructors' Championship
o  Participations Matrix
o  Race Results
o  Poles and Fastest Laps
o  Line-Up
o  Calendar

Profiles
o  Drivers
o  Teams
o  Cars
o  Engines
o  Tyres
o  Lubricants
o  Entrants
o  Designers
o  Car Numbers
o  Sponsors
o  Events
o  Circuits

History
o  Drivers' Championships
o  Constructors' Championships
o  Race Results
o  All-Time Calendar

Statistics
o  Data Search

Other
o  Acknowledgments
o  Links
www.ChicaneF1.com
1991 United States GP
1990 Brazilian GP

1991 Brazilian GP

1991 San Marino GP
1992 Brazilian GP
 XX  Grande Prêmio do Brasil

Event Overview • SessionsEntry List
Qualifying Pre-QualifyingQualification
Race Starting GridClassificationFastest LapsLaps Led

Details
DateSunday 24 March 1991
Start time14:00
Event Brazilian GP
Circuit Interlagos
Event FormatRace of 71 laps
ChampionshipWorld Championship
Race number#2 of 16 in 1991
#502 (of all time)
Circuit
Laps71
Circuit Perimeter4325 m
Race Distance4325 × 71 = 307.075 km
Grid Format2-2-2-2 (staggered)
Pole PositionLeft
First CornerLeft
Track DirectionAnti-clockwise
Weather
WeatherOvercast, Mild, Wet
Participants
Entries34
Qualifiers26
Finishers13
DebutantsNone
MilestonesCanon Williams Team – 100th Race Entry (Entrant)
Honda Marlboro McLaren – 100th Race Entry (Entrant)
 Mauricio Gugelmin – 50th Race Entry (Driver)
 AGS – 100th Race Entry (Car Manufacturer)
 Gabriele Tarquini – 50th Race Entry (Driver)
Records Broken 1. Most Laps Led Ayrton Senna (2260)
Records Extended 1. Most Drivers' Championship Points Scores Ferrari (554),
2. Most Constructors' Championship Points Scores Ferrari (422),
3. Most Constructors' Championship Points Scores Alain Prost (110),
4. Most Drivers' Championship Points Scores Alain Prost (110),
5. Most 4th Place Finishes Ferrari (100),
6. Most 6th Place Finishes Ferrari (59),
7. Most 12th Place Finishes Brabham (25),
8. Most Race Entries Lotus (1208),
9. Most Race Entries Riccardo Patrese (211),
10. Most Poles Ayrton Senna (54),
11. Most 3rd Place Qualifications Nigel Mansell (25),
12. Most 5th Place Qualifications Ferrari (112),
13. Most 6th Place Qualifications Ferrari (93)

World Championship standings
1  Ayrton Senna 20 
2  Alain Prost 9 
3  Riccardo Patrese 6 
4  Nélson Piquet 6 up
5  Gerhard Berger 4 
6  Stefano Modena 3 up
7  Satoru Nakajima 2 up
8  Aguri Suzuki 1 up
  Jean Alesi 1 
1  McLaren / Honda 24 
2  Ferrari / Ferrari 10 
3  Williams / Renault 6 
4  Benetton / Ford 6 
5  Tyrrell / Honda 5 up
6  Lola / Ford 1 up

Results
 WinnerPole PositionFastest Lap
Car NumberCar 1Car 1Car 5
EntrantHonda Marlboro McLarenHonda Marlboro McLarenCanon Williams Team
Driver Ayrton Senna Ayrton Senna Nigel Mansell
Car McLaren MP4/6 McLaren MP4/6 Williams FW14
EngineHonda 3.5 V12Honda 3.5 V12Renault 3.5 V10
Time1:38'28.1281'16.3921'20.436
Speed187.110 km/h203.817 km/h193.570 km/h