CONCORD, N.C. — Kyle Busch, leading a race he had to win, not once believed he was driving toward a season-saving victory. He doesn’t even think he can get to victory lane this year. “Do we even have a shot to win? I don’t think we have a shot,” Busch said after he was eliminated from the playoffs Sunday. NASCAR will crown a new champion this year and the worst season of Busch’s career extended to mark the earliest the reigning Cup champion has been eliminated since the format debuted in 2014. Chase Elliott won on the hybrid road course-oval at Charlotte Motor Speedway, where Busch and three others were trimmed from title contention.