NASCAR tweaks rules to lower downforce at 2 more track (The Associated Press)

NASCAR will make more aerodynamic changes to promote improved competition at upcoming races at Michigan and Kentucky. The changes to the rear spoiler, front splitter and rear deck fin will help NASCAR continue to reduce downforce and sideforce as it attempts to put the handling of the cars back in the hands of the drivers. NASCAR has been tweaking the package at the request of the drivers, who overwhelmingly favor less downforce.