I have a rare copy of Alex Collville, war artist
http://www.mta.ca/library/courage/al...rdrawings.html
that contains a large number of very detailed pencil sketches of trucks carriers and armoured cars. Trucks are mostly Cab 12 drawings he made while in england. Later ones on the continent are a little rougher but are of some interesting scenes. The book is only pencil sketchs not the works he later finished in a studio.