Driving down a dual carriageway this morning around 10am, it was foggy but light. Now, the Highway Code would have me believe that owing to reduced visibility, my lights should be on (which they were manually,but off automatically). It was interesting to see that many 'older' cars coming toward me had indeed their lights on but 'newer' cars did not. It is apparent then that we should not depend on the 'auto' light selection on the light stalk and select the lighting manually. So, not much use for this 'auto' light system but a dangerous setting if like my wife, you just leave it there hoping everything is sorted for you! Gone back to manual settings especially for foggy/misty winter months.