This appears to have been made in the mid/late 1960s; the first CHP car appears to be a '67 Oldsmobile. It features several interesting ambulances including a '61 and '63 Olds, a couple of panel conversions, a '59 Eureka and Superior, and (my favorite) a '63 Siebert:
[ame]http://www.youtube.com/watch?v=MT5SdRnHUeg[/ame]
[ame]http://www.youtube.com/watch?v=MT5SdRnHUeg[/ame]