HC Deb 29 November 1961 vol 650 c68W
112. Sir G. Wills

asked the Minister of Transport whether, in the interests of road safety, he will take steps to see that manufacturers of heavy duty vehicles and tankers fit them with engines developing sufficient power to enable them to travel at reasonable speeds up average main road gradients when they are fully loaded.

Mr. Marples

The cost and complexity of any mandatory scheme of this kind would outweigh any possible advantages.