Jack Roush pioneered the roof flaps used to keep NASCAR vehicles on the ground during high-speed spins.

https://www.nascarhall.com/blog/top-10-wrenches

Prepping for Talladega in 1997, his driver, Jeff Burton thought it would be okay to mess with the roof laps which Roush had invented and became standard for NASCAR.

 He relocated them five inches forward, which helped lower the air drag and increase his speed. Some might argue NASCAR officials slightly overreacted. Rather than just fine Burton, they literally cut the roof off the entire car. They also fined Burton $20,000 to ensure no one would try this roof trick again.

https://www.hotcars.com/pics-of-nascar-race-cars-that-broke-the-rules/