Indianapolis Motor Speedway, Speedway INMay 25, 2013 Pat Kennedy’s 1948 Kurtis Kennedy Tank Spl. leads a group of roadsters through turn 3.Photo: Jim Hatfield Indy Roadsters lined up prior to Saturday’s all-roadster track session. Bill Akin’s 1953 Kurtis KK500B Bardahl Spl. in foreground.Photo: Jim Hatfield This revolutionary 1968 Lotus 56-Turbine was brought out by Bruce Linsmeyer.Photo: Jim Hatfield Tom Malloy raced his 1962 Lujie Lesovsky-built Watson Sarkes-Tarzian Spl.Photo: Jim Hatfield Michael McKinney at speed in his ex-Roger McCluskey 1972 Antares.Photo: Jim Hatfield