41 week of 1991

Circuit/Rally Championship Date Winers Chassis
Austria A1 Ring Österreichische Rennwagen Meisterschaft Formel 3 1991.10.13 Dallara F391 - Alfa Romeo/Novamotor
1991.10.13 Eufra 390 - Volkswagen/Spiess
Italy Autodromo Nazionale di Monza Italian Superturismo Championship 1991.10.13 Alfa Romeo 75 Turbo Evoluzione
1991.10.13 Alfa Romeo 75 Turbo Evoluzione
United States Del Mar Barber-Saab 1991.10.13 Mondiale - Saab
IMSA GT Championship 1991.10.12 Ford Mustang
1991.10.13 Eagle Mk III - Toyota
United Kingdom Donington Park Brytyjska Formuła 3000 1991.10.13 Lola T90/50 - Cosworth
France Montlhéry Porsche Carrera Cup France 1991.10.13 Porsche 964
Germany Nürburgring VLN Langstreckenmeisterschaft Nürburgring 1991.10.12 Porsche Carrera RSR
Brazil Tarumã Brazilian Formula 3 Championship 1991.10.13 Ralt RT33 - Mugen-Honda
SudAm Formula 3 Championship 1991.10.13 Ralt RT33 - Mugen-Honda
United Kingdom Thruxton Circuit Brytyjska Formuła 3 1991.10.13 Bowman BC1 - Volkswagen-Spiess
Brytyjska Formuła Renault 1991.10.13 Van Diemen RF91 - Renault
Formula Vauxhall Junior Championship 1991.10.13
Burundi Rajd Burundi African Rally Championship 1991.10.13 Audi 90 Quattro
Lebanon Rajd Libanu Middle East Rally Championship 1991.10.13 Toyota Celica GT-4