Here are a few more. I should have shot some video in the paddock while I was standing next to it being started and warmed-up. Holy moly it sounded sweet.
If you guys have never been to these sort of historic club races (HSR, VARA, SVRA) then you should make a point of it. Even if you are not ready/willing to drive with them as of yet, it's a chance to get up close to some really cool vintage cars and their owners/drivers.