1998 CART season Drivers and constructors Drivers and constructors

| Team | Chassis | Engine | Tires | No_ | Drivers_ |
|---|---|---|---|---|---|
| Chip Ganassi Racing | Reynard 98i | Honda | Firestone | 1 | Alex Zanardi |
| Chip Ganassi Racing | Reynard 98i | Honda | Firestone | 12 | Jimmy Vasser |
| Marlboro Team Penske | Penske PC27-98 | Mercedes | Goodyear | 2 | Al Unser, Jr. |
| Marlboro Team Penske | Penske PC27-98 | Mercedes | Goodyear | 3 | André Ribeiro |
| Walker Racing | Reynard 98i | Honda | Goodyear | 5 | Gil de Ferran |
| Newman-Haas Racing | Swift 009.c | Ford XB | Goodyear | 6 | Michael Andretti |
| Newman-Haas Racing | Swift 009.c | Ford XB | Goodyear | 11 | Christian Fittipaldi ,  Roberto Moreno |
| Team Rahal | Reynard 98i | Ford XB | Firestone | 7 | Bobby Rahal |
| Team Rahal | Reynard 98i | Ford XB | Firestone | 8 | Bryan Herta |