Overview

• The change, confirmed by Steve O’Donnell, raises output from 670 to 750 horsepower for a subset of races starting next season.
• Roughly 17 events are slated to use the package, including the debut race at San Diego’s Naval Base Coronado.
• On-track evaluation begins with an off-season session at North Wilkesboro and January testing at Daytona, with Goodyear developing more aggressive tire compounds after trials such as Iowa.
• Driver reaction is split, with Kyle Larson and Kevin Harvick downplaying the on-track impact while Christopher Bell, Dale Earnhardt Jr., and Joey Logano call the move a step forward.
• NASCAR cites a projected $40–50 million industry cost to exceed 750 horsepower and says any further changes must align with aero, braking, and tire updates, while superspeedways remain at 550 horsepower and many 1.5-mile tracks keep the current package.