Actually Roger you are incorrect in your comment - according to the Highway Code, (rule 211 - RVLR Regs 25 & 27) it says "you must not use front or rear fog lights UNLESS visibility is seriously reduced (100 metres or 328 feet) as they dazzle other road users and can obscure your brake lights. You must switch them off when visibility improves". And as I posted, I was told by a policeman they can be used on a motorway if there is spray from heavy rainfall, as long as they are switched off when either exiting the motorway or the visibility improves.Many "boy racers" drive around with their fog lights on all the time in a "look at me" pose. Some ordinary drivers forget to switch them off after using them. They're only legal to use in fog or falling snow. If they're used in rainy conditions they constitute dangerous driving because of the glare which makes it very difficult for other drivers to see anything.