Nice!
I'll be at the New Hampshire Vintage in 3 weeks and the Jefferson 500 (at Summit Point) in 4 weeks.
I expect I'll see some cars like that too.
By the way, the #31 Spridget is a "Spec-Sprite". The rules for that class were created by Roger Williams who posts under the name "jollyroger" here at BCF.
Most Spec-Sprite run in CVAR....a Texas-based vintage race club.