I also bumped into people I hadn't seen in almost a decade and was shocked that one of my old gang now has grey hair (but he's younger than me!).
Obviously I took photos:
Some spectators came in very nice cars:
Early in the day, a car lost oil all the way up, kindly marking the racing line for everyone else.
Near the bottom of the hill:
Slightly further up:
Looking up towards Bottom S:
In the middle of the Esses:
My camera battery gave up before I could get any shots near the Finish, but this one may give you an idea of how fast some of the cars were going:
Full set starts here.