Initial testing of IndyCar's 2028 chassis will be carried out with the current motor while the series continues to work with Honda and Chevrolet on finalizing the new engine regulations.

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 2026 rules will provide more electrical energy being available as part of the power unit – close to a 50:50 split with the internal combustion engine – while active aerodynamics also come into use.

What’s the smartest way to use the 60 extra horsepower delivered by IndyCar’s energy recovery system during qualifying this weekend for the Indianapolis 500?

Josef Newgarden expects the first hybrid Indianapolis 500 to be settled among those who’ve mastered usage of the energy recovery systems.“I think the hybrid utilization here will be the most impactful of anywhere we've gone,” the winner of the last two Indy 500s told RACER. “It is going to be...

The run plan for a team at the annual pre-Indianapolis 500 test is fairly standard. Drivers are asked to assess a range of ride height changes, suspension adjustments to things like camber and toe, and downforce settings during group outings and solo qualifying simulations.A change is made, the driver heads...

Colton Herta’s quick thinking saved the Andretti Global driver from losing a significant amount of time when he stalled the engine on Sunday at Portland. It also opened an interesting conversation within the NTT IndyCar Series that will lead to changes.Herta’s final pit stop was going according to plan until...

Last Saturday’s race at World Wide Technology Raceway opened a window into one of the more interesting processes developed by the NTT IndyCar Series since it converted to hybrid powertrains in June.The new IndyCar Energy Recovery System (ERS), made in a joint cooperation between Chevrolet and its engine partner Ilmor...

The kindest way to present the running of IndyCar’s first hybrid oval race is to say the series left Iowa Speedway with a lot of lessons and a lot to improve in the days and weeks ahead.Separate from the issues that led to a dire lack of passing, race control’s...

The exact weight loss figure won’t be known until every component in IndyCar’s new-for-2024 hybrid formula is completed, but speeds are expected to increase during the opening half of the season as the venerable Dallara DW12 chassis makes use of some new lightweight parts.The range of components, which include a...