The Michigan International Speedway (or MIS) is a two-mile (3.22 km) long racetrack. It contains more than 1,400 acres, near Brooklyn, Michigan. The track is used mostly for NASCAR events. It is sometimes known as the "sister track" of Texas World Speedway. Construction for the track began on September 28, 1967, and opened October 13, 1968 with budget of around $4–6 million.