garetgax wrote:. A copper would be more interested in my door numbers (which are legal) than pulling over a shed like that.
A couple of years ago I'd have agreed with you. With the advent of computerised MOT and insurance records, and ANPR getting more and more widespread, cars like this can only get away with it (In most towns anyway) for a limited time. Any car without upto date records "pings" the ANPR, and alerts people to some easy pickings.
If found, it will 99 times out of a 100 be seized on the spot, or if found to be legally documented, but dangerous, subject to a notice that means it cannot be driven on a road, and must pass an MOT before it is re-used.
It's not perfect but it is getting better.