§ 58. Sir N. Cooper-Keyasked the Minister of Transport whether he is aware that at certain times of the year mist on the rear windows of private cars renders centre interior mirrors useless; and whether he will make regulations that all vehicles shall be fitted with mirrors on mudguards.
§ Mr. Tom FraserThe fitting of external mirrors is already compulsory for goods vehicles, heavy passenger vehicles and dual purpose vehicles. Cars must have a mirror providing rear vision—though the type is not specified—and there is a Regulation requiring all glass to be kept so that vision is not obscured when driving.
Provided the advice in Rules 16, 31 and 82 of the Highway Code is followed, I think that safety can be preserved by a driver whose car has either type of mirror, and I have not seen evidence to suggest that a further Regulation would help.