NASCAR has announce to reduce the height of rear spoiler and front bumper valance for next coming races at Michigan
International Speedway 2 mile and Kentucky Speedway 1.5 mile. NASCAR will go back to the drawing board to make racing better on the 1.5 miles track, said the Executive vice president Steve O'Donnell.
International Speedway 2 mile and Kentucky Speedway 1.5 mile. NASCAR will go back to the drawing board to make racing better on the 1.5 miles track, said the Executive vice president Steve O'Donnell.