From my recent visits to Daytona and Sebring, I have created spectator photographer guides. They can be found on pistonclick.com along with Spa, Silverstone and others. Hope they are helpful.
Daytona
https://www.pistonclick.com/a-photog...ide-to-daytona
Sebring
https://www.pistonclick.com/sebring-...tional-raceway