There is no complete list AFAIK, but I'll dig out the link that gives one of the most complete, and post it here. When I remember where it is.... Failing that PM me your e-mail and I can send you my version in Excel format.
Try: http://www.geocities.com/Pentagon/Quart ... vlist.html and at the bottom of the page there are links to pre-WWII etc. Also: http://en.wikipedia.org/wiki/List_of_FV ... y_vehicles but I think that's mainly a duplicate from the first link.
Thanks. I have a few FV-numbers myself not on any of those two lists (maybe we should try to create a more complete list between the members of this forum?), but they were still helpful. Do you know if the digits has any specific significance?
I've noticed that one speaks of for example the FV600 family (Salaldin, Saracen etc) or the FV1600 series (Humber 1-ton), but there is as far as I can tell no actual vehicle with the designation FV600 or FV1600.