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INDYCAR Unveils 2028 IR-28: 760hp, 100-lb Lighter

7/29/2026

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Summary

Story summary

United States INDYCAR unveiled the 2028 IR-28, a 100-lb lighter car with a 2.4-L V6 delivering 760 hp and a slimmer aeroscreen.
Testing began at Indianapolis Motor Speedway and Sebring, where driver Alexander Rossi described the car as lighter, futuristic and safe.
Chevrolet and Honda will provide V6 engines and a Helix hybrid that cuts 20 lb for the IR-28, which will debut in 2028 to challenge Luyendyk’s 1996 Indianapolis qualifying record.

History

Historical Context

Arie Luyendyk’s 1996 Indy 500 qualifying run set a 237.5 mph one-lap record that still stands, achieved amid the IRL-CART split and the final year of turbocharged engines. The 2028 INDYCAR IR-28, unveiled by United States INDYCAR and tested at Indianapolis, uses a hybrid, lighter chassis to chase that benchmark, illustrating the series’ shift toward hybrid, high-efficiency power.

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Story summary

United States INDYCAR unveiled the 2028 IR-28, a 100-lb lighter car with a 2.4-L V6 delivering 760 hp and a slimmer aeroscreen.
Testing began at Indianapolis Motor Speedway and Sebring, where driver Alexander Rossi described the car as lighter, futuristic and safe.
Chevrolet and Honda will provide V6 engines and a Helix hybrid that cuts 20 lb for the IR-28, which will debut in 2028 to challenge Luyendyk’s 1996 Indianapolis qualifying record.

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