I think if you drive into London (from any direction) it is very safe to say you're tracked going in, and tracked going out. However elsewhere in the UK it is

I think if you drive into London (from any direction) it is very safe to say you're tracked going in, and tracked going out. However elsewhere in the UK it is much less common in general. There are entire counties where I'm yet to see a ANPR camera, just your regular old fashioned speed cameras.