The brand‑new Dallara IR‑28 chassis will roll out in IndyCar’s 2028 season after a test at the Indianapolis road course, according to Motorsport.com.
Test-Day Participants
Reigning IndyCar Champion Alex Palou piloted the prototype, while 2016 Indianapolis 500 winner Alexander Rossi served as a test driver, both gathering alongside the engineering crew to validate the new design.
Design Evolution
IR‑28 marks the first major chassis overhaul since the DW‑12 revision in 2012, moving beyond the 2018 update’s largely cosmetic changes. The new vehicle re‑engineers aerodynamic surfaces and refines structural load paths, promising improved handling and safety for the 2028 grid.
Visual Highlights
Photographs taken by Joey Barnes showcase detailed close‑ups of the IR‑28’s chassis and aerodynamic elements, illustrating the device’s new profile and construction.
With these tests complete, the IR‑28 sets a clear technical direction for IndyCar’s next era, signalling a substantial leap in chassis performance and safety that will shape the 2028 season.
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