The NASCAR Air Force is cool - always a fun and busy time on the ramp with those groups. I believe Gibbs had Saab 2000s - 2, maybe 3 previous to the CRJ. As did Hendrick. I think they are all at Penn Air now (
@ASpilot2be ?). Waltrip Racing has been operating a 200 for a while, maybe 2. Earnheart operates ERJ145s.
I don't recall the exact fleet number any longer, mostly because I don't have to. There has been a lot of transition. Miami Air comes to mind, previously it was ExpressJet charters operating for the same teams with 4-5 aircraft.