The Removal of Vehicles (England and Wales) Regulations 1957
These Regulations further vary the provisions of the said First Schedule and the following are the principal changes: 1. the speed limit of heavy motor cars, being goods vehicles not drawing trailers and of articulated vehicles, where each wheel is fitted with pneumatic tyre, is increased from 20 to 30 m.p.h. (paragraph 2 (1) of the Schedule); 2. the speed limit of certain passenger vehicles drawing close-coupled four-wheeled trailers is increased from 20 to 30 m.p.h. (paragraph 1 (2) (a) of ...