Jim Gregg puts his 1957 Austin Healey 100/6 through its paces at Road America. Photo: Mark ScheuernFloridian George Tuma brought along his 1969 Ferrari 365 Daytona. Photo: JR SchabowskiTightly drafting pack of pre-1972 Formula Fords heads down the hill into Turn 5. Photo: Jim HatfieldChris MacAllister aims his ex-Niki Lauda 1976 Ferrari 312T2 (#1) for the apex of Turn 6. Photo: Jim Hatfield