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With its new aero package for 2019, NASCAR wants to increase drag and downforce while decreasing
in its Cup cars at certain tracks. This comes after NASCAR had spent several years trying to
downforce, making the cars tougher to handle.
In theory, the cars in 2019 will be easier to drive on intermediate tracks with the new aero
has been described as similar to, but not exactly the same as, the package Cup cars ran in the
Race. That event featured an unprecedented amount of drafting and pack racing at the 1.5-mile
The new aero package that will be run in every Cup race in 2019 consists of the following:
In addition, at tracks longer than 1.2 miles, the new aero package will include both air ducts
tapered spacer. Among those tracks, Atlanta, Pocono, Darlington and Homestead are exceptions;
races will feature the smaller tapered spacer, but not the air ducts. The smaller tapered spacer
inches in diameter to 0.922 inches in diameter) will restrict more air flow and decrease
target of 750 to a target of 550. The air ducts will increase drag and downforce.
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