DGR was it somewhere between a tank and one of those flail things they use for mine clearance? (hot or cold?)
The riot control vehicle ?
No it was a ludicrous piece of kit. 
If you've never seen it, and fancy some lighter viewing this evening, see if you can beg, borrow, or find-on-youtube a copy of Pentagon Wars:
en.wikipedia.org/wiki/The_Pentagon_Wars
which will explain a lot, about (quasi) military procurement in general.
First thing I said when I saw it was "isn't it a bit top heavy ?" which was why they daren't use it. Frankly a troop of girl guides could have toppled it, let along an angry mob. I suspect it had been stripped of it's guns which would have been used to keep it clear, so was useless in the UK.
I also saw an armoured Land Rover which I was told had been called out to Hungerford, but managed to get a puncture
so never made it. (The idea being to drive up to Ryan and safely corner him). The armour was very thick, and it had internal covered gun ports to fire from, and an industrial strength jetwash to clear the (bullet resistant) screen of paint and inflammable devices in case a crowd was knocking up the Molotov cocktails I alluded to earlier 
Somewhere I have a baton round I was given on a visit. Fucking terrifying thing and an excellent example of how language can mislead as there is no way on Gods Green Earth you'd ever call this thing a "rubber bullet".
However that was the 80s and 90s. Riot and crowd policing have gotten much more advanced. Which is one reason why I for one am extremely unworried by the idea of any Brexit unrest as some sort of Gammon Spring. As I said I can use my eyes and brain.
For some reason I've just remembered Tony Blairs deployment of tanks around Heathrow for what was then, and still remains, no good reason. Unless he wanted the crews out of the way so he could conduct a "Boris" with someones wife at barracks ?