2025 NTT INDYCAR SERIES Season Preview

The NTT INDYCAR SERIES season in 2025 features 17 races, two of which will be held at Indianapolis Motor Speedway, highlighted by the 109th Running of the Indianapolis 500 presented by Gainbridge on Sunday, May 25. The car-and-driver lineup is as large as the sport has had in many years, with 27 full-time competitors expected for the IMS road course races (the Sonsio Grand Prix on Saturday, May 10). The field includes five Indianapolis 500 winners. Get a team-by-team look at the competitors below.