Nascar
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NASCAR implementing aerodynamic changes to Cup cars for Talladega

NASCAR will institute aerodynamic changes to all Cup Series cars ahead of Sunday’s Round of 12 playoff race at Talladega Superspeedway, the sanctioning body announced Tuesday.

Among the mandated additions will be an extended-height roof rail, an extended rocker panel skirt and fabric beneath the right-side roof flap. These combined efforts are intended to reduce the chances and effects of a vehicle getting airborne in the event of an on-track, high-speed incident on the 2.66-mile superspeedway.

NASCAR.com