| October 31|
| 1986 CART PPG Indy Car, 1992 PPG Indy Car World Ser, 1991 CART PPG Indy Car, 1989 CART PPG Indy Car, 1983–84 USAC Champio|
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. The PPG Indy Car World Series Drivers' Champion was Rick Mears. Rookie of the Year was Bob Lazier. After the disagreement with the USAC during the previous season, the 65th Indianapolis 500 was not part of the Series, however no competing race was scheduled and most CART teams and drivers did take part.
1981 CART PPG Indy Car World Series Wikipedia
The following teams and drivers competed for the 1981 CART World Series.