Speedway is a town in Wayne Township, Marion County, Indiana, United States. The population was 12,881 at the 2000 census. Speedway is the home of the Indianapolis Motor Speedway, from which the town derives its name, and is a complete enclave of Indianapolis. The town of Speedway was developed as a city of the future. Meant to be a testing ground much like the famed race track which is its namesake, Speedway was designed to be a city that was hospitable to the car. In a time when Indianapolis streets were often the narrow orange brick thoroughfares laid by Alexander Ralston in the 1920s and 1930s, the town had homes with garages for cars.