sentences:  It features racing on Saturday nights that include Outlaw Body Late Models, Street Stocks, and Figure 8s for its weekly divisions.Flat Rock Speedway was constructed in 1952, but financial issues led to the original investors backing out.Under Sheldon Hayes of the Cadillac Asphalt Company, the track was completed in 1953; using 70 tons of a mixture of rubber and asphalt, Hayes created a "rubberized" asphalt surface that was the first of its kind for a race track.