Sebring in 1973 was the beginning of a new era for the legendary track. The Alec Ulmann era had ended in 1972 because he was not able to do the track upgrades demanded by the FIA and as a result they withdrew their sanctioning of the ’73 race as part of the FIA World Championship.
Saving the Sebring race from the trash heap of history was John Bishop and the newly formed International Motor Sports Association (IMSA).