From somewhere on the Western Front:
"A Ford car struck by a light rail way train after dark, Feb. 1918"
that would make a great diorama.
Here's what my friend Bret, who is an expert on old trains has to say about the picture: The locomotive and car look to be US Army equipment. The army bought quite a few gas mechanical engines as well as very small steam locomotives to aid in moving equipment in Europe. I have heard some of the little steam locomotives referred to as trench locomotives. Maybe they did in fact use them in hauling off the spoils from the trenches. Some of the equipment that presumably never left the USA was sold surplus after WW1...
Even a very small locomotive is heavy. It looks like the T did pretty well, all things considered. I'll bet that that car ran again very soon. It is pretty unusual to have a car vs train collision where the car can be reused.
Here's another smallish train from the same theatre- this one belonged to the Kaiser, and unlike the Ford pictured above, it took the brunt of the damage!
Captioned "German engine in a village recently taken by Canadians, July, 1917."