@aloisious
Sorry for inadverently masquerading as @admin in the thread. I'm really too bad in vehicle recognition, but this google search suggests that literally anything that moved was used in the Dunkirk exodus. Actually mostly of lorries and civilian vehicles, tracked vehicles possibly being abandoned before reching the beaches.
I can see Tillies, Citroens, Matadors, and plenty of other machinery - help anyone?.
http://www.google.com/search?q=dunkirk+abandoned+vehicles&rlz=1C1CHMOsvSE526SE526&espv=2&tbm=isch&tbo=u&source=univ&sa=X&ei=y3itU4ngC6j9ygPZ-YCoDw&ved=0CDkQsAQ&biw=1680&bih=949#q=dunkirk+abandoned+vehicles&tbm=isch&imgdii=