Category Events - United States, Bowling Green (KY) It's back! The 9th Annual ChallengerFest Event! Drag Race and Car show. Come out and enjoy a weekend full of activities. Trophies, Prizes, and just good family Fun! April 13th - April 15th. ChallengerFest is the largest modern Mopar enthusiast event in the U.S. Challengers, 300s, Magnums and Jeeps are all welcome! There are two days at the track!! Visit the ChallengerFest website for more details.