With the first two days of Dallara IR28 testing beset by rain at the Indianapolis Motor Speedway’s road course, the IndyCar Series made a brief return to complete 25 laps of dry running Tuesday evening with Alex Palou.

RACER’S Marshall Pruett has spent the last year tracking developments with the IndyCar Series’ new chassis, engine, and the rest of what’s on the way for 2028.

The IndyCar Series is formally shifting its new chassis and engine introduction from 2027 to 2028.