The Speedway Motorsports CEO Marcus Smith—whose company oversees the racetrack—reflected on the "once-in-a-generation" driver and his legacy. 

"At Charlotte Motor Speedway, Kyle etched his name in history, earning more victories across NASCAR's top three series than any other driver in our sport," the statement on X began. "Many of his remarkable 234 NASCAR victories came at Speedway Motorsports tracks where his talent and competitive spirit created countless memorable moments for more than two decades."

"When Kyle climbed behind the wheel," he added, "he brought an intensity and determination that demanded respect from his competitors and inspired fans throughout motorsports."

The Charlotte Motor Speedway also honored Busch ahead of the North Carolina Education Lottery 200 May 22, with the track holding a moment of silence for the late NASCAR champion.

Busch—one of the most decorated drivers in the sport's history—had passed out May 20 while testing in the Chevrolet racing simulator, several people familiar with the situation told the Associated Press. He had become unresponsive and was quickly transported to a hospital in Charlotte, North Carolina, the AP reported. 

The following day, on May 21, his family shared he was in the hospital with a "severe illness." Then, hours later, NASCAR confirmed Busch—dad to kids Brexton, 11, and Lennix, 4, with wife Samantha Busch—had died.

"A future Hall of Famer, Kyle was a rare talent, one who comes along once in a generation," the joint statement with his family shared. "He was fierce, he was passionate, he was immensely skilled and he cared deeply about the sport and fans."

"NASCAR lost a giant of the sport today, far too soon," the statement continued. "During this incredibly difficult time, we ask everyone to respect the family's privacy and continue to keep them in your thoughts and prayers."

Two days following his death, his family confirmed Busch's cause of death was severe pneumonia, which progressed into sepsis.

"The medical evaluation provided to the Busch Family concluded that severe pneumonia progressed into sepsis, resulting in rapid and overwhelming associated complications," the Busch family said in a May 23 statement, per NBC News. "The family asks for continued understanding and privacy during this difficult time."

For a closer look at Busch's life on and off the racetrack, keep reading.