The racetrack is located near the former locations of Ontario Motor Speedway and Riverside International Raceway. It is also used for open wheel racing events. Report Background Auto Club Speedway, the track where the race was held.Īuto Club Speedway (formerly California Speedway) is a two-mile (3.2 km), low-banked, D-shaped oval superspeedway in Fontana, California which has hosted NASCAR racing annually since 1997. It was the final race on the 2 mile oval as it will not be on the 2024 schedule due to the track being renovated into a 0.5 mile short track in 2024. It was contested over 200 laps on the two-mile (3.2 km) D-shaped oval and it was the second race of the 2023 NASCAR Cup Series season. The 2023 Pala Casino 400 was a NASCAR Cup Series race that was held on February 26, 2023, at Auto Club Speedway in Fontana, California.