1989 IndyCar season Drivers and constructors Drivers and constructors

| Team | Chassis | Engine | Tires | Drivers |
|---|---|---|---|---|
| Andale Racing | Lola | Cosworth | Goodyear | Bernard Jourdain |
| Andale Racing | Lola | Cosworth | Goodyear | Johnny Parsons |
| Euromotorsport | Lola | Cosworth | Goodyear | Jean-Pierre Frey |
| Euromotorsport | Lola | Cosworth | Goodyear | Davy Jones |
| Euromotorsport | Lola | Cosworth | Goodyear | Scott Atchison |
| Euromotorsport | Lola | Cosworth | Goodyear | Tero Palmroth |
| Euromotorsport | Lola | Cosworth | Goodyear | Guido Daccò |
| Alex Morales Motorsports | March | Alfa Romeo | Goodyear | Roberto Guerrero |
| Arciero Racing | Penske | Cosworth | Goodyear | Didier Theys |
| Arciero Racing | Penske | Cosworth | Goodyear | Fabrizio Barbazza |
| Arciero Racing | Penske | Cosworth | Goodyear | Rich Vogler |
| Hemelgarn Racing | Lola | Judd / Buick | Goodyear | Ludwig Heimrath |
| Hemelgarn Racing | Lola | Judd / Buick | Goodyear | Tero Palmroth |
| Hemelgarn Racing | Lola | Judd / Buick | Goodyear | Didier Theys |