Sharon Frey keeps her 1970 Caldwell D9 FF ahead of a group of C racers as they negotiate Turn 3D. Photo: Jim HatfieldFred Sickler, J R Schabowski, Jim Hatfield2013Featured Editorials & Premium ContentNorth AmericaOctober '13RegionVintage Racecar ArchivesVintage Racecar ArticlesVintage Racecar DepartmentsVintage Racecar Gallery October 1, 2013 0VSCDA Blackhawk Vintage Classic Blackhawk Farms, South Beloit, IL June 14–16, 2012 Access to the full article is limited to paid subscribers only. Our membership removes most ads, lets you enjoy unlimited access to all our premium content, and offers you awesome discounts on partner products. Enjoy our premium content. See Membership Options