Race fans will get a chance to watch sprint cars take hot laps tonight at the Knoxville Raceway. Practice is tonight starting at seven and let’s drivers shake down their cars and motors for the upcoming season. In addition to practice night, Saturday is opening night. KNIA KRLS will have complete coverage starting with Let’s Talk Racing Saturday at 12:30, Live Track Side at 5:30 and Race Night’s Live at 7:30.