The IndyCar Series is set to open a rapid-fire season this weekend on the streets of St. Petersburg, Florida, and blast through 17 races in six months with the finale on Aug. 31 at Tennessee's Nashville Superspeedway.
Some drivers have changed teams during the offseason, and one of the fan favorites, ex-Formula 1 veteran Romain Grosjean, is out of a ride and has joined newcomer Prema Racing as its backup, but in many ways, what's on the horizon in 2025 feels like a continuation of the great IndyCar racing that was produced in 2024. The resumption of the fight among IndyCar's 11 teams and 27 drivers goes green on Sunday, and there are a few threads worth following throughout the calendar.