The 1972 GRD 272 of Michael Snowdon powers through Oak Tree turn. Photo: Fred LewisTom Grudovichโs 1963 Elva Mk VII. Photo: Fred LewisGordon Medenicaโs ex-works 1978 March 782 flies down the back straight. Photo: Fred LewisThe 1969 Gropa of Phil Meany. Photo: Fred Lewis