Feeder Series are important. NASCAR Xfinity, Formula 2. For IndyCar, Indy NXT is their premier development series. What is Indy NXT?
Indy NXT - Wikipedia
Indy NXT Latest News, Information, Analysis, Drivers and Videos
Indy NXT: Who's going where in 2024? – Feeder Series
Indy NXT: Five takeaways from the Grand Prix of St. Petersburg
2022 Writers' Roundtable, Vol. 21: Indy 500 Winner?
Andretti INDYCAR and INDY NXT: A guide 📚
Plenty of Reasons for IndyCar Teams to Pay Attention to Indy NXT Series
Nolan Siegel Paces Second Indy NXT Practice at St. Petersburg
Indy NXT at the Brickyard Weekend - eatmyink motorsports media, news and culture
Indy NXT Grid on Track to have 22 Cars in 2024 : r/INDYCAR
IndyCar announces new name for Indy Lights, 2023 calendar
Indy Lights Rebranded to INDY NXT by Firestone
Road to Indy rebrand complete: Goodbye Indy Lights, welcome Indy NXT – Feeder Series
Lundqvist returns for Indianapolis IndyCar race, MSR plans Friday announcement