I beg to move, at the end of Sub-section (1, i,), to insert a new paragraph— (j) prohibiting on all highways vehicles that are especially damaging to roads through bad design. I want to know what are the Minister's present powers for the regulation of vehicles which do needless damage to the roads. As an old railwayman the right hon. Gentleman would object to any locomotive running on a railway and doing the track damage, but in the case of heavy motor vehicles one can design a car in any way one likes, irrespective of the damage that might be done to the roads. I think the right hon. Gentleman should give to the manufacturers notice that some of their designs must be altered.