Nascar 2025 Rule Changes. Nascar released a lengthy rules bulletin on friday that includes changes to race procedures, additional penalties, and the addition of a 41st car to the cup series field. More changes are afoot in nascar as friday, the series issued a rules bulletin for 2025, touching on several aspects of the sport that have been pain points for participants and fans,.
Nascar has rolled out a series of major changes for the 2025 season in a recently issued rules bulletin, aimed at addressing common pain points for both participants. Nascar officials have adjusted the wording for the “100% rule” of performance obligations, changing the focus on competitors who “artificially alter the finishing positions” to.