The 1981 CART PPG Indy Car World Series season, the third in the CART era of U.S. open-wheel racing, consisted of 11 races, beginning in Avondale, Arizona on March 22 and concluding at the same location on October 31. Wikipedia
Dates: Mar 22, 1981 – Oct 31, 1981
Drivers' champion: Rick Mears
Races: 11
Rookie of the Year: Bob Lazier
Location: United States and Mexico City