Dirt

Dirt Racing is a form of Auto Racing which is contested throughout Australia, United Kingdom, America and Canada. It is completed on oval tracks, which typically have two straights and four 90 degree turns. It is the single most common form of Auto Racing in the United States and Australia. Throughout the world there are hundreds of dirt tracks which host various different types of speedway race cars. Typically dirt tracks in the USA range from 350m to 1000m (1/4mile to 1mile) and in Australia they typically range from 350m to 600m (1/4mile to 3/8mile)

History
Dirt Track Racing or Speedway began in the United States just before WW1 and beame widespread throughout the 1920's and 1930's. Two different types of racecars dominated the speedway scene, throughout this time period, open wheel racecars and stockcars. To the Northeast and West were the open wheel racecars and to the south were the stock cars.

USA
The United States of America has become renowned for the vast arrange of dirt tracks, categories and innovations throughout the 20th and 21st century. Dirt Track racing has evolved in the US from the early 1900's where stock cars and open wheel cars dominated the speedway scene. The evolution of the open wheel cars into a number of different categories including Sprintcars and Midgets (speedcars) etc. The stock cars have stayed greatly the same, with a number of different categories emerging such as the Late Models, Pro Stocks, Street Stocks, Modified etc.

Australia
Post World War 2 speedway racing in Australia evolved, both in open wheel divisions and stock car divisions. The defining moment in open wheel speedway was the introduction of the Anderson Sprintcar into Australia and then the eventual evolution into what has become Sprintcars today. Speedcars in Australia have also developed and evolved significantly. Stock cars have been transformed in Australia into what is today Late Models, Street Stocks, AMCA Nationals etc.