CONCORD, N.C. (AP) — Kyle Busch, a two-time NASCAR Cup Series champion, died after severe pneumonia progressed into sepsis, resulting in rapid and overwhelming complications, according to a statement released by his family. The medical evaluation was received on Saturday, as confirmed by Dakota Hunter, vice president of Kyle Busch Companies, in a news release.
Details of His Passing
Busch, 41, died on Thursday, a day after losing consciousness while testing in a Chevrolet racing simulator in Concord, North Carolina. He was preparing for the Coca-Cola 600 at Charlotte Motor Speedway when he became unresponsive. Emergency services were called, and he was transported to a hospital in Charlotte. An emergency call revealed he had shortness of breath, was very hot, and was coughing up blood.
Understanding Sepsis
Sepsis is a life-threatening medical emergency where the body has an extreme response to an infection. The immune system damages its own tissues and organs, causing widespread inflammation, microscopic blood clots, and leaky blood vessels. Busch was believed to have had a sinus cold while racing at Watkins Glen on May 10 and requested medical attention after the race.
Career and Legacy
Busch won 234 races across NASCAR's top three series, more than any driver in history. In his honor, all 39 drivers in the field for Sunday's race will display a black No. 8 decal on their cars.



