Correction for the length of Daytona International Speedway
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How long is 6,587 meters?
It's about one-and-two-thirds times as long as Daytona International Speedway

The length of Daytona International Speedway is about 4,023.360 meters.
(Daytona Beach, Florida) (tri-oval course)
The tri-oval course of the Daytona International Speedway, upon which the NASCAR Daytona 500 is run, is 4,023.360 meters in length. Although the tri-oval design is said to allow for greater visibility during the race, the real reason for the then-unique design was that plot available for construction of the track was only 350 acres and could not accommodate a traditional oval layout of appropriate length.