The ChumpCar World Series returns to BIR for a pair of eight-hour endurance races. ChumpCar racing features $500 junkers and teams of four drivers that will take on BIR’s 2.5-mile Competition Road Course Saturday and the 3.1-mile Donnybrooke Road Course Sunday. The pits are always open. On-site camping is available, including 164 full-service RV sites. Daily admission is $25. Kids 12 and under are FREE!