Found this picture of a Mk I (?), Google explanation (I don't believe them always) says it is taken in Toronto (Canada) in 1916. Is this possible, first tanks were "secret" weapons, used for the first in summer 1916 so, can it be that there was already a "show" tank (driving over a car to show its power?) the same year (looking at the trees must be autumn) ?
This is a Mark IV Female, and if I recall correctly the location is London, Ontario, Canada. You can see the whole car crushing episode on a Pathe newsreel.