Great event at Sonoma Rcwy last week hosted by CSRG. Very high caliber of cars at play - F1, F5000, Sports Racers, Prod cars, etc.
Here's a quick link and a short vid from the event of the smallbore sports racers.
http://www.racingonthecheap.com/csrg...-challenge-18/
https://www.youtube.com/watch?v=uDpkyusJtbo