Darlington’s Cup race poised to test new 750-hp aero rules
Darlington’s NASCAR Cup race is set to be a wild test of a new rules package, featuring a 750-horsepower tapered spacer and a short-track aero configuration with reduced underbody and a smaller spoiler. Drivers including Denny Hamlin, Christopher Bell, Brad Keselowski and Chris Buescher say the changes should boost tire wear and create more passing opportunities, potentially making the venerable track resemble its high-degradation, throwback days as teams manage grip and tire life.