I suggest you tell the MID to take it off the database, that would help.
The car is still showing as insured which will not help find it.
Surely the ANPR would ping it up as Stolen, which would generate a much higher response than No Insurance.
I know what you mean about making sure it does something, but the Stolen Cars Register is updated a lot quicker than the MID, and as the MID would show a VERY recent lapse, meaning that it could be in the crossover of a renewal, it's possible that it would be ignored.
Very distinctive car though, anyone with even half a brain would have taken those stickers off if they were using it (probably leaving a sticky residue on the bonnet unless done properly).
Hopefully, as suggested before, it's been abandoned somewhere, possibly side street, dead end (so no passing traffic) or private car park.