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Dallara IR-28 oval test puts IndyCar's chassis cycle in focus as Palou wins fourth straight title

9/9/2026

The operational calendar at Chip Ganassi Racing carries a concrete next date: Alex Palou is set to shakedown the Dallara IR-28 on the Indianapolis Motor Speedway oval on Thursday, weeks after securing his fourth consecutive NTT IndyCar Series championship.

Palou tested the IR-28, the series' first new chassis in well over a decade, at Indianapolis in August and told OutKick the session ran with "almost zero issues." The car's in-race debut is targeted for 2028, with more than a year of further development ahead for both engine manufacturers, Honda and Chevrolet.

Four straight, and the numbers behind it Four consecutive championships places Palou alongside Sébastien Bourdais as the only drivers in series history to accomplish that run.

Bourdais did it in the mid-2000s, before the Indy Racing League and the Champ Car World Series merged into the current series. Palou's latest title is his fifth in six years. The 29-year-old from Spain pilots the No.

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