SUPERSPEEDWAY

In North American motorsports, a 'superspeedway' is a race track at least 2 miles in length [1], featuring only left turns. This term is used to differentiate these tracks from short tracks, intermediate tracks, and road courses.
The most famous superspeedway from a NASCAR standpoint is undoubtedly Daytona International Speedway in Daytona Beach, Florida. Built in 1959 as a replacement for the Daytona Beach Road Course, which combined the town's main street and its famous beach, the track holds the Daytona 500, NASCAR's most important single race. It also contains a road course that use the NASCAR turns (1,2,3,4) and a track that runs through the infield. This tracks holds the Rolex sports car series 24 Hours of Daytona.
The longest and fastest superspeedway is the Talladega Superspeedway in Talladega, Alabama. Built in the 1960s, it is 2.66 miles (4.20 kilometers) long, and holds the current record for fastest speed in a stock car, 228 miles per hour (367 km/h). ^[1]
NASCAR has 6 tracks that it classifies as superspeedways: Talladega Superspeedway (2.66 miles) Talladega, AL; Daytona International Speedway (2.5 miles) Daytona Beach, FL; Pocono Raceway (2.5 miles) Long Pond, PA; Indianapolis Motor Speedway (2.5 miles) Speedway, IN; California Speedway (2 miles) Fontana, CA; Michigan International Speedway (2 miles) Brooklyn, MI ^[2]

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References

References

1. http://www.nascar.com/2004/news/headlines/cup/06/10/rwallace_talladega/index.html
2. http://www.nascar.com/races/tracks/