Peterson is good, don't get me wrong, but if you want to see some cars go to the Nethercutt museum! Amazing Collection & they all run!
http://nethercuttcollection.org/
I would suggest you also attend the La Canada meet which happens every sat morning starting @ about 6:30 am.
http://maps.google.com/maps?source=i...ed=0CBkQnwIwAw
If you're in reasonably good shape you can always hike up to the HOLLYWOOD sign. I always take friends & family up there. Always fun. It's a couple mile walk, up hill.