The West Series was first formed in 1954 as a proving ground for drivers from the West who could not travel to race in the more traditional stock car racing regions like North Carolina and the rest of the South. Drivers who have raced in the West Series include Kevin Harvick, Brendan Gaughan and Derrike Cope.
In 2003, NASCAR unified the rules for the Busch North and the West Series, forming the Grand National Division for cars in both series, concluding with the Toyota All Star Showdown in Irwindale, CA, for the Grand National championship.
The series ran two seasons without a sponsor before AutoZone took over sponsorship of the West series, following NASCAR's announcement to discontinue the AutoZone Elite Division after 2006, due to declining support in all four Elite Divisions.
For 2007, NASCAR made several rule changes including a "spec" engine and a composite body to reduce the cost of competing in both the Busch East Series and the AutoZone West Series.
The other regional division at the Grand National level of NASCAR is the K&N Pro Series East.
- NASCAR Sprint Cup Series 2008 Media Guide. Daytona Beach, FL: NASCAR PR, 2008.
- "Winning the West" by Scott Keyes, Stock Car Racing, retrieved June 21, 2006
- Nascar Grand National Division West Series Website
- Stats, News and History