1980 IndyCar season Drivers and constructors Drivers and constructors

| Team | Chassis | Engine | Tires | Drivers |
|---|---|---|---|---|
| All American Racers | Eagle | Cosworth | G | Mike Mosley |
| Longhorn Racing | Longhorn | Cosworth | G | Al Unser |
| Alsup Racing | Penske McLaren | Cosworth | G | Bill Alsup |
| Alsup Racing | Penske McLaren | Cosworth | G | Phil Caliva |
| Galles Racing | Penske McLaren | Cosworth Chevrolet | G | Dick Ferguson |
| King Racing | McLaren King | Cosworth Chevrolet | G | Roger Mears |
| King Racing | McLaren King | Cosworth Chevrolet | G | Billie Harvey Jerry Miller |
| 1st National Bank of Peru | Anteres | Offy | G | Jan Sneva |
| Hoffman Racing | Penske Lightning Spyder | Cosworth Offy | G | Joe Saldana |
| Hoffman Racing | Penske Lightning Spyder | Cosworth Offy | G | Bob Frey |
| Stanton Barrett | Penske | Cosworth | G | Ron Shuman |
| Mergard Racing | Eagle | Offy | G | John Wood |