I think Don is correct about the vehicle. No other vehicle matches the description closer:
Twin Chryslers (Cadillac), small gun (3.7), 15 tonnes, and "new" (to the Canadians I guess in 1945) since the Honey was considered obsolete.
Cool picture though.
And interesting as my uncle did state that 3 recce were attached to each squadron of tanks.
My uncle has had a stroke so details (like the recce in Sicily) may be incorrect... but at this point I have to believe him until I have irrefutable proof otherwise... no disrespect intended here.