Anthony Edwards drove his ex-Roberto Guerrero 1984 True Value March 84C-Cosworth. Photo: Jim HatfieldThe Henry Ford Museum brought Jim Clark’s 1965 Indy-winning Lotus 38-Ford for Dario Franchitti to drive. Photo: Jim HatfieldHere’s Philippe de Lespinay in the 1961 Kimberly Cooper T54 with which Jack Brabham sparked Indy’s rear-engine revolution, and that Jack’s grandson Matthew would drive during Saturday’s lapping session. Photo: Jim HatfieldTurning many heads was this replica of the 1968 Lotus 56 Turbine with which Joe Leonard nearly won the 500. Photo: Dan R. Boyd