Came across this photo of Canadian wasp flamethrowers in action during the heavy fighting to clear the Scheldt Estuary in '44.
I think the 'wasp' may have been the flamethrower rather than the vehicle.
This is a universal carrier with a wasp flamethrower.
I have one of these in my Bolt Action collection, model in 28ml from Warlord.
However there are other photos of wasp flamethrowers on carriers. This looks like a field modification.