sentences:  In 1960, new general manager Joan Simmons created a points system and raised competitor numbers, leading to track attendance increasing by 81 percent.A year later, Simmons formally established ties with France's friend and MARC head John Marcum, who became track owner the following year.Marcum would later rename his sanctioning body the Automobile Racing Club of America (ARCA), whose Bondo/Mar-Hyde Series continued racing at Flat Rock until 2000, with Frank Kimmel winning the final ARCA premier series race at the track.