NASCAR adjusts Cup Series superspeedway rules for 2026 season
Yahoo Sports • 1 min read • Latest: Jul 17, 2026, 1:30 PM
Last updated Jul 17, 2026
NASCAR announced changes to the Cup Series superspeedway package for the 2026 season, starting at Daytona International Speedway. The rear spoiler height will decrease from seven to four inches, aiming to reduce drag and enhance passing opportunities. Additionally, horsepower will drop from 510 to 465, intended to lower downforce while maintaining similar speeds in packs. These alterations are expected to encourage more competitive racing at superspeedway venues, with Daytona set to be the first test of these new rules.
- •New rules to debut at Daytona International Speedway in 2026.
- •Rear spoiler height decreases to four inches.
- •Horsepower reduced from 510 to 465.
- •Changes aim to improve passing and competitive racing.
- •NASCAR anticipates similar speeds in car packs.
- 1:30 PMYahoo Sports — NASCAR reveals new rules for Cup Series superspeedway package in 2026
"NASCAR has revealed new rules for the Cup Series superspeedway package for the 2026 season, starting at Daytona International Speedway.
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