| 1980 CART season | |
|---|---|
| PPG Indy Car World Series | |
.svg){kind=logo}  Champion: Johnny Rutherford | |
| Season | |
| Races | 12 |
| Start date | April 13 |
| End date | November 8 |
| Awards | |
| Drivers' champion |  Johnny Rutherford |
| Constructors' Cup | Penske |
| Manufacturers' Cup |  Cosworth |
| Nations' Cup | United States |
| Rookie of the Year |  Dennis Firestone |
| Indianapolis 500 winner | Johnny Rutherford |
The 1980 CART PPG Indy Car World Series season was the second in the CART era of U.S. open-wheel racing. It consisted of twelve races, beginning in Ontario, California on April 13 and concluding in Avondale, Arizona on November 8. The PPG Indy Car World Series Drivers' Champion and Indianapolis 500 winner was Johnny Rutherford. Rookie of the Year was Dennis Firestone. The entire season, including the 64th Indianapolis 500, was to be co-sanctioned by both the USAC and CART under the banner of the Championship Racing League (CRL). However, USAC withdrew from the arrangement after five races.
The season-opening race at Phoenix, set for March 2, was cancelled due to local flooding and washed out roads.
Johnny Rutherford in Jim Hall's Chaparral 2K ground effects chassis dominated the season. Rutherford won five races, including a dominating performance at the 1980 Indianapolis 500. Rutherford finished in the top five in the first ten races, pulling out to a commanding and unmatchable points lead. Rutherford started the season out by finishing 1st or 2nd in the first six races, and ended with a total of eight finished of 1st or 2nd. Rutherford's season was not without incident, however. In the final race of the season at Phoenix, while battling Tom Sneva for the lead, Rutherford tangled with a lapped car, hit the wall, then flipped over. The car landed upside-down hard on its rollbar, but Rutherford was not seriously injured.