NASCAR champion Kyle Busch was a fierce competitor on the track and brought that same fervor to his roles as a husband, father, and brother. The racing star unexpectedly died on Thursday, May 21, after being hospitalized for an unspecified but “severe” illness, NASCAR confirmed. “A future Hall of Famer, Kyle was a rare talent, one who comes along once in a generation. He was fierce, he was passionate, he was immensely skilled and he cared deeply about the sport and fans,” the series, his family, and team Richard Childress Racing said in a statement . Busch is statistically one of the greatest drivers in NASCAR history, winning 63 races in its premier Cup series (ninth all-time) and a record 234 races across its three primary touring series. On track, he was known as “Rowdy” for his aggressive driving style and often unapologetic behavior. But away from his race car, he was known as a family man to his wife, Samantha, and their two children, son Brexton and daughter Lennix.…