It was a season of surprisingly few race winners, with Alex Palou sweeping to the championship with a round to spare and Josef Newgarden cleaning up on the majority of the oval tracks.
More: The factors that fuelled Palou’s 2023 IndyCar domination
But there were still two first-time visitors to victory lane, in Kyle Kirkwood and Christian Lundgaard, while several promising rookies emerged in Marcus Armstrong and Linus Lundqvist - both of whom earned full-season deals at Chip Ganassi Racing for next season.
As defending series champion Will Power slumped to seventh in the standings, going winless for the first time since 2006, there was the end of an era as Tony Kanaan made his final U.S. open-wheel start at Indianapolis and Helio Castroneves ended his full-time IndyCar career.
Autosport runs the rule over the class of 2023 to pick out the 10 brightest lights.
10. Colton Herta
Source: Autosport