Michigan Speedway is a Super Speedway oval, located near Brooklyn. Primarily the track is used for NASCAR events, but they do host some much smaller events, all on the oval circuit. It's just an oval, with no infield section. Built in 1968 for a cost of around $5 million, the circuit could hold 25,000 people. In less than five years, the circuit had a new owner, in the form of Roger Penske (of Penske Racing) who upgraded the circuit several times, and increased the seating capacity to 125,000 people. Today's seating capacity is over 135,000 after being upgraded by more than 10,000 seats after another change of owner in 1999. It's a huge oval and one of the fastest on the NASCAR calendar, with awesome viewing and guaranteed close racing.