NASCAR Xfinity Series at Auto Club Speedway information
NASCAR Xfinity Series race at California Speedway
Production Alliance Group 300
NASCAR Xfinity Series
Venue
California Speedway
Location
Fontana, California, United States
Corporate sponsor
Production Alliance Group[1]
First race
1997 (1997)
Last race
2023 (2023)
Distance
300 miles (480 km)
Laps
150 Stages 1/2: 35 each Final stage: 80
Previous names
Kenwood Home & Car Audio 300 (1997–1998) Auto Club 300 (1999–2002) 1-800-Pitshop.com 300 (2003) Stater Brothers 300 Presented by Gatorade (2004) Stater Brothers 300 (2005–2010) Royal Purple 300 (2011–2013) Treatmyclot.com 300 (2014) Drive4Clots.com 300 (2015) Treatmyclot.com 300 by Janssen (2016) Service King 300 (2017) Roseanne 300 (2018) Former second race: Target House 300 (2004) Ameriquest 300 (2005–2006) Camping World 300 Presented by RVs.com (2007) Camping World RV Service 300 Presented by Coleman (2008) Copart 300 (2009) CampingWorld.com 300 (2010)
Most wins (driver)
Kyle Busch (6)
Most wins (team)
Joe Gibbs Racing (11)
Most wins (manufacturer)
Ford Toyota (11)
Circuit information
Surface
Asphalt
Length
2.0 mi (3.2 km)
Turns
4
Stock car racing events in the NASCAR Xfinity Series were held at the Auto Club Speedway in Fontana, California from the track's inauguration in 1997 until 2023. The 300-mile (480 km) event was previously named Production Alliance Group 300 for sponsorship reasons most recently in 2023. The race was usually scheduled in late March as the fifth event of the schedule and as a support event for the NASCAR Cup Series' Auto Club 400. It was previously been held in October and late April or early May. John Hunter Nemechek was the last winner of the event, after winning it in 2023.
A second race at the track was also held during the fall as support to the Cup fall race from 2004 until the track lost its second Cup date after 2010.
No races have been held since 2023, as the track is currently undergoing demolition of the 2-mile oval.
^"Production Alliance Group named title sponsor of NASCAR Xfinity 300 race at Auto Club Speedway". Auto Club Speedway. March 6, 2019. Archived from the original on August 13, 2020. Retrieved March 6, 2019.
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