ELKHART LAKE, WI - SEPTEMBER 1: Jim Hall's Chaparral 2G at the Road America CanAm on September 1, 1968 in Elkhart Lake, Wisconsin. (Photo by Alvis Upitis/Getty Images)
ELKHART LAKE, WI - SEPTEMBER 1: Jim Hall's Chaparral 2G at the Road America CanAm on September 1, 1968 in Elkhart Lake, Wisconsin. (Photo by Alvis Upitis/Getty Images)
