Tony Stewart Seals the Deal By Winning Championship at SRX Finale Series co-founder wins inaugural Superstar Racing Experience championship at Nashville By Steven Cole Smith Dylan Buell/SRXGetty Images "Six weeks have never gone by so fast," said former NASCAR champ Tony Stewart, standing on the front straight of Nashville Fairgrounds Speedway, a traditional paved five-eighths-mile oval. Stewart had just finished second to guest driver Chase Elliott, with father Bill Elliott a strong third after winning his heat race. You Ain't Seen Nothing Yet It was the final race of the reason for the Superstar Racing Experience, or SRX, a six-week experiment between Stewart, NASCAR champion crew chief Ray Evernham and CBS, which committed 10 hours of Saturday prime-time programming at two hours at a time. Would people watch superstar drivers like Helio Castroneves, Tony Kanaan, Michael Waltrip, Bobby Labonte and newcomers like Halie Deegan and Ernie Francis, Jr. on small paved and dirt ovals in a from-scratch 750-horsepower car that Evernham designed?