NASCAR modifies superspeedway package ahead of Coke Zero Sugar 400

Yahoo Sports1 min read • Latest: Jul 15, 2026, 6:45 PM

Last updated Jul 15, 2026

NASCAR modifies superspeedway package ahead of Coke Zero Sugar 400
Summary

NASCAR announced changes to the Cup Series' superspeedway package on July 15, aiming to increase car speeds during the Coke Zero Sugar 400 in August. The rear spoiler will be reduced from 7 inches to 4 inches, while horsepower will drop from 510 to 465, addressing drag and downforce. Officials anticipate that this will lead to single-car runs being about 3 mph faster, encouraging more competitive racing and less focus on fuel-saving strategies. Denny Hamlin discussed the adjustments, emphasizing the goal to achieve a more aggressive racing style similar to that seen at Atlanta. The new rules will be implemented for the race on August 29, but it is uncertain if they will carry over to the final superspeedway event in October at Talladega.

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By the Numbers
  • Rear spoiler reduced from 7 inches to 4 inches for less drag.
  • Horsepower decreased from 510 to 465 for lower downforce.
  • Single-car runs expected to be 3 mph faster after the changes.
  • Revisions aim to promote overtaking and competitive racing strategies.
  • New rules take effect for the Coke Zero Sugar 400 on August 29.
Latest Updates
  • 6:45 PMYahoo SportsNASCAR just changed a rule — and hopes it makes cars faster at Daytona
What they're saying
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By updating the Cup Series' superspeedway package, NASCAR expects single-car runs to be 3 mph faster during the Coke Zero Sugar 400 in August.

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