After late 1950s, the racetrack was expanded three-fold: paved after 1958, and a 1.5-mile sports car road course was added along with riding a quarter-mile drag strip.
By the late 1950s, the racetrack expanded three-fold. It had been paved in 1958, and a 1.5-mile sports car road course that also combined a quarter-mile drag strip was added.