Nationwide Series is the second highest level of professional competition in NASCAR. This series were held in 1982 with sponsorship support from Anheuser-Busch Brewing through its core brands of Budweiser. In 1984 the name of the series was turned into a Busch Grand National Series. Partnership with Anheuser-Busch ended in 2007 and was replaced by Nationwide Insurance. Nationwide also become the official insurance sponsor of NASCAR replace Allstate. At the end of the 2013 Nationwide announced they would step down from his position as the main sponsor in this series but it remains as one of the main partners of NASCAR.
O'Reilly 300 Nationwide Series race held at Texas Motor Speedway in 2007.
Broadly speaking, some of the Nationwide Series race at the travel is shorter than the competition in the Cup Series was also influential in prize money awarded. Even so in the last few seasons a lot of riders who fell in the Cup Series Nationwide Series race under the pretext Cup Series practice for the next day. Critics often addressed in the Cup Series racers down in the Nationwide Series where they seize the rights or impede existing nursery young drivers in the Nationwide Series before they rise to the class of Cup Series. The riders were down double in Cup Series and Nationwide Series is often called "Buschwhackers". In 2007 Nationwide Series director Joe Balash announced that it would review the rules NASCAR Cup Series driver who fell in the Nationwide Series. One of the proposals is if the driver contents Cup Series wins in the Nationwide Series points they won in the Nationwide Series does not count and the only course that racers get the trophy. NASCAR CEO Brian France also reviewing this proposal and said that he was still considering the matter of limitation riders down in the Cup Series Nationwide Series. In the 2011 season, NASCAR announced that the revised rules and riders, especially riders who have competed regularly in the Cup Series has to choose what series will he follow in the beginning of the regular season to earn championship points. In conclusion Cup Series driver who down in the Nationwide Series or Truck Series is not recorded points based on these new rules.
For used cars, the 2010 season Nationwide Series car apparently adapted form of the model of the "Car of Tomorrow" (COT) which is used in the Cup Series with some differences in the aerodynamics and engine. Some observers welcomed these changes and hopes to reduce the Cup Series drivers who fell in the Nationwide series.