I finally broke down and liberated my boxes of photos from storage. Right on top of the first one I opened were the only photos I have of my '65 Mustang that I ran on Mulholland. Photos are from the 1977 Willow Springs "Vintage" Races. Vintage was defined as 10 years old or older. Required safety equipment were seatbelts, a helmet and long sleeves. My buddies nicknamed the car "Marvel the Mustang". Those of us of a certain age will probably recall the toy by the same name.
Cheers,
Kurt O.