February 28, 20233 yr Moderators NASCAR confirmed that Cup Series teams are receiving a rulebook bulletin this week detailing the updates to the car for road courses and a majority of tracks measuring 1.058-mile or less in distance.The package, which was tested in the offseason at Phoenix Raceway, will debut at that track for its March 12 race.It consists of a 2-inch spoiler and the removal of three diffuser strakes and ...Keep readingView the full article
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