The 1991 CART PPG Indy Car World Series season was the 13th national championship season of

American open wheel racing American open-wheel car racing, also known as Indy car racing, is a category of professional automobile racing in the United States. As of 2022, the top-level American open-wheel racing championship is sanctioned by IndyCar. Competitive events ...

sanctioned by

CART A cart or dray (Australia and New Zealand) is a vehicle designed for transport, using two wheels and normally pulled by one or a pair of draught animals. A handcart is pulled or pushed by one or more people. It is different from the flatbed tr ...

. The season consisted of 17 races, and one non-points exhibition event.

Michael Andretti Michael Mario Andretti (born October 5, 1962) is an American semi-retired auto racing driver and current team owner. Statistically one of the most successful drivers in the history of American open-wheel car racing, Andretti won the 1991 CART P ...

was the national champion, and the rookie of the year was his younger brother

Jeff Andretti Jeff Andretti (born April 14, 1964) is a former American race car driver. He competed in CART, and was the series' Rookie of the Year in 1991. Personal life Jeff is the youngest son of Dee Ann (Hoch) and legendary Italian-born 1969 Indy 500 C ...

. The

1991 Indianapolis 500 The 75th Indianapolis 500 was held at the Indianapolis Motor Speedway in Speedway, Indiana, on Sunday, May 26, 1991. Rick Mears won from the pole position, becoming the third four-time winner of the Indy 500, joining A. J. Foyt and Al Unser. Durin ...

was sanctioned by USAC, but counted towards the CART points championship.

Rick Mears Rick Ravon Mears (born December 3, 1951) is a retired American race car driver. He is one of four men to win the Indianapolis 500 four times (1979, 1984, 1988, 1991) and is the current record-holder for pole positions in the race with six (197 ...

won the Indy 500, his record-tying fourth victory in the event.

won a total of eight races, eight pole positions, and led more than half of the laps during the season, but the championship battle still went down to the final race of the season.

Bobby Rahal Robert Woodward Rahal (born January 10, 1953) is an American former auto racing driver and team owner. As a driver he won three championships and 24 races in the CART open-wheel series, including the 1986 Indianapolis 500. He also won the 2004 ...

won only one race, but had 11 podium finishes and 13 top tens. Rahal's consistent season put him in position to challenge Andretti for the title in the season finale at Laguna Seca. Andretti got off to a slow start to the season, dropping out of the first two races, and finished a heartbreaking second at

Indianapolis Indianapolis (), colloquially known as Indy, is the state capital and most populous city of the U.S. state of Indiana and the seat of Marion County. According to the U.S. Census Bureau, the consolidated population of Indianapolis and Marion ...

. But after Indy, he shot to the top of the standings. He won four of the last five races of the season, and needed to finish 6th or better at Laguna Seca to clinch the title. When Bobby Rahal dropped out at Laguna Seca with overheating problems, Andretti cruised to the title.

Drivers and constructors

The following teams and drivers competed for the 1991 Indy Car World Series. All entrants used Goodyear tires.

Season Summary

Schedule

Oval/Speedway
Dedicated road course
Temporary street circuit
NC Non-championship event
*Indianapolis was USAC-sanctioned but counted towards the PPG Indy Car title.

Race results

Final driver standings

Nation's Cup

* Top result per race counts towards Nation's Cup.

Chassis A chassis (, ; plural ''chassis'' from French châssis ) is the load-bearing framework of an artificial object, which structurally supports the object in its construction and function. An example of a chassis is a vehicle frame, the underpart ...
Constructor's Cup

Engine An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy. Available energy sources include potential energy (e.g. energy of the Earth's gravitational field as exploited in hydroelectric power gen ...
Manufacturer's Cup

References

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