There was an old Peerless Max Dodge WC ambulance. The molds are now owned by Italeri and have been released by Testors and most recently Bilek as a Signal Corps truck.
Here is a link to an eBay auction of one:http://cgi.ebay.com/Italeri-lot-of-2-1-35-WWI-kits-Allied-WC-54-Ambulance_W0QQitemZ180226664838
I may get so drunk, I have to crawl home. But dammit, I'll crawl like a Marine.
Italeri has a WW2 Jeep Ambulance too.