Sunday 13th October 1968
The first race staged at the two-mile (3.2 km) moderate-banked D-shaped Michigan Speedway in Irish Hills Michigan, US) was won by Ronnie Bucknum in the Weimberger Homes Special. The track is used primarily for NASCAR events. It is sometimes known as a “sister track” to Texas World Speedway, and was used as the basis of Auto Club Speedway. The track is owned by International Speedway Corporation (ISC). Michigan International Speedway is recognized as one of motorsports’ premier facilities because of its wide racing surface and high banking (by open-wheel standards; the 18-degree banking is modest by stock car standards). Michigan is the fastest track in NASCAR due to its wide, sweeping corners, long straightaways, and lack of a restrictor plate requirement; typical qualifying speeds are in excess of 200 mph (320 km/h) and corner entry speeds are anywhere from 215 to 220 mph (346 to 354 km/h) after the 2012 repaving of the track.