IR28 Ushers in a Lighter, Tech-Driven Era for IndyCar

IndyCar unveiled the IR28, a new, lighter spec Dallara chassis for 2028 with an integrated aeroscreen and redesigned aero to reduce dirty air, oval-specific wings, and a new Custom AXIS Inertance Suspension; the car will run identical chassis across Chevrolet and Honda but with distinct engines, and it shifts to a battery-based hybrid with more storage and lighter components, while Fox and Honda secure long-term partnerships to signal a stable future for the series.