Sticking to the theme of armoured vehicles, I mentioned seeing a Montreal police Cadillac Gage 4-wheel armoured car used in a successfully resolved barricade call. I may have been one belonging to the Quebec Provincial Police. It might have been requested on some sort of mutual aid agreement. As mentioned, Montreal has an armoured truck(s) based on a heavy short wheelbase chassis, and the Surete have the armoured car(s).
http://policecanada.ca/
Knowing guyvapeur has policing experience, I don't want to mow his grass, but for the purposes of the discussion. The RCMP have emergency teams positioned across the country, with a national team centrally located in Ottawa. Each team has various alert postures, manning and scales of equipment. From everything I have seen there are comparatively few police armoured vehicles in Canada. When required, the RCMP have requested military AVGP or LAVIII vehicles and drivers. An example of that was for a particularly protracted standoff in BC when AVGPs were used to ferry sniper dets and overwatch teams through exposed ground.