Neat Glen, I saw that car (I believe with Carroll driving) in 1959 at Shelton Wa. The Logging Day Festival
Believe it or not the Airport track (Shelton's pop. was less then 2000 at that time) had many, many famous American racer from the late 50s-to early 60's there. Hill, Gurney, Ginther, etc. See if I can find something online about those races. Cheers Tom.