bttt
The Germans had the Wirbelwind Flakpanzer IV back in WWII.
http://www.youtube.com/watch?v=jNKtbI09WWg
I think our closest WWII equivalent was the M3 Halftrack with the quad 50 calibers on them.
We had something called the M247 “Sgt York” as well, post-war (1960’s or 1970s??).
Missiles instead of guns, now... longer reach, bigger bang...