I recently read a book about the US "Fighting 69th" in Iraq (The Fighting 69th: One Remarkable National Guard Unit's Journey from Ground Zero to Baghdad by Sean Michael Flynn -
http://www.amazon.co.uk/Fighting-69t...5650592&sr=1-3) and in that book the author outlines the poor condition of many of the HUMVEEs they were given and the efforts they went to to add armour in particular to them.
If memory serves me correctly in the book of Generation Kill the author also recounts how the Marines had such poor armour on some of their HUMVEEs that they just removed doors etc so that they were able to fire out more easily and drive faster.
Therefore (Paul) I think that in the T2k setting (and the T2013 setting) you will get a lot of hybrid vehicles that are cobbled together from bits of other vehicles so any examples that you add to your site will be much appreciated!