Year

1991

ChampionshipChampion driverFull table
American Race Drivers Club Midget ChampionshipLou Cicconi(Jr)Show full table
BMW ADAC Formel Junior MeisterschaftChristian AbtShow full table
Formula 1 World ChampionshipAyrton SennaShow full table
Formula 3000 International ChampionshipChristian FittipaldiShow full table
Portuguese Formula Ford 1600 ChampionshipManuel GiaoShow full table