Groups 5, 7 & 11

Group 5 - Small bore World Sports Car Championship, prototypes as raced 1960-1972; Sports 2000, SRF’s and WSR cars

Group 7 - World Championship of Makes, on slicks; Under 2L sports cars as raced after 1972; Can-Am as raced after 1967; center-seat Can Am, SCCA ASR and BSR

Group 11 - GTP/Group C, ALMS, PSCR, WSC, Grand Am, Prototypes, SCCA P1 and P2 as raced from 1981