1980 IndyCar season Drivers and constructors Drivers and constructors

| Team | Chassis | Engine | Tires | Drivers |
|---|---|---|---|---|
| Texaco Star | Lightning | Offy | G | Janet Guthrie |
| Vita Fresh Orange Juice Medlin Racing | Eagle | Offy | G | Tony Bettenhausen Jr |
| Wysard Motor Co. | Wildcat McLaren | DGS Cosworth | G | Vern Schuppan Pete Halsmer |
| J J Enterprises | Wildcat | Cosworth DGS | G | John Martin |
| BFM Enterprises | Manta | Offy | G | Milt Harper |
| National Engineering | McLaren | Cosworth | G | Michael Chandler |
| Walmotor | Penske | Cosworth | G | Salt Walther |
| Pronosticos Deportivos | Penske | Cosworth | G | Daniel Muñiz |
| -Private Entry- | Penske | Cosworth | G | Juan Carlos Bolaños |
| Shade Tree Racing | Eagle | Offy | G | Michel Jourdain |
| Psachie | Penske | Cosworth | G | Josele Garza |
| Rhoades Racing | Eagle | RAM | G | Larry Rice |