1988 IndyCar season Drivers and constructors Drivers and constructors

| Team | Chassis | Engine | Tires | Drivers |
|---|---|---|---|---|
| Newman/Haas Racing | Lola | Chevrolet | G | Mario Andretti |
| Patrick Racing | March / Lola | Chevrolet | G | Emerson Fittipaldi |
| Galles Racing | March | Chevrolet / Cosworth | G | Al Unser, Jr. |
| Team Penske | Penske | Chevrolet | G | Rick Mears |
| Team Penske | Penske | Chevrolet | G | Danny Sullivan |
| Team Penske | Penske | Chevrolet | G | Al Unser |
| Porsche North America | March | Porsche | G | Teo Fabi |
| Truesports | Lola | Judd / Cosworth | G | Bobby Rahal |
| Kraco Racing | March / Lola | Cosworth | G | Michael Andretti |
| Doug Shierson Racing | March / Lola | Cosworth | G | Raul Boesel |
| Raynor Racing | Lola | Cosworth | G | Derek Daly |
| Arciero Racing | March | Cosworth | G | John Jones |