autoweek.com — Toyota driver Tony Stewart dominated the Aaron’s Nationwide 312 on Saturday afternoon, getting his fifth career Nationwide Series win, but his first--in any NASCAR series--at Talladega Superspeedway. The win came in his 27th Talladega start: 18 in Sprint Cup, five in Nationwide and four in IROC. He went into the 312-miler with seven career runner-u