I know one truck driver that got out of a fine and points once very craftily but you cannot do it with anything but an artic , or road train , he was caught on camera speeding , when he got the ticket he wrote back and told them he had lent his trailer to a french company for the day and was not using it himself , and the french do not carry number plates as their trailers are registered with their own reg plates , and he got away with it !!!
Thats from the highway code vans over 2 tons are 50mph on ornery roads, but note the car derived vans bit for under 2 tons , bit of a grey area with some of the people carriers / vans avaialble now

