Answer
Yes, Johnny Sauter did compete in the Xfinity Series. He competed for several years, with his most successful season coming in 2016 when he finished second in the championship standings. Sauter won a total of four races in the Xfinity Series during his career, with his first win coming in 2012 at Talladega Superspeedway and his last win coming in 2019 at Bristol Motor Speedway.