But the number plate isn't shown in the original pic of the van. You only gave the reg number in post #450. If I'd seen the flag sign of course I'd have known it was a Scottish plate.
That's an older model 2012 van and the MA it starts with in the reg corresponds to Manchester/Merseyside.
You are getting close coz the mock police car look is supposed to make drivers slow down. But still the riddle is - who drives the car if it isn`t the police or anybody involved in security/road safety etc???