I did that with the daughters car when we met at Warwick services and I
brought it up to Preston to get an MOT and looked at for a water leak.
Garage owner laughed his head of, but agreed there was nothing the
police could do about it, because it was on its way for a pre booked
MOT. The law does not stipulate were, or how far away, the MOT station
should be. It passed, with no recommendation's, by the way.

Dave

I did this for many years when I lived in a bus (which had insurance but
no tax.)
When eviction / site moving time came,
book an MOT,
go for MOT,
pass or fail,
return to new site.

[g]