11 week of 1991

Circuit/Rally Championship Date Winers Chassis
Mexico Chihuahua Mexican Formula Two champions 1991.03.17 Ralt RT4 - Chrysler
United States Sebring IMSA GT Championship 1991.03.16 Nissan NPT-90
United Kingdom Silverstone Circuit Brytyjska Formuła 3 1991.03.17 TOMs 031F - TOM's-Toyota
Brytyjska Formuła Ford 1991.03.17 Van Diemen RF91 - Ford
Australia Surfers Paradise Street Circuit Indy Car World Series 1991.03.17 Lola T9100 - Chevy
Belgium Circuit des Ardennes European Rally Championship 1991.03.16 Ford Sierra RS Cosworth 4x4
Italy Rajd 1000 Miglia 1991.03.16 Ford Sierra RS Cosworth 4x4