Is there legislation which governs the positioning of tail lights (markers) on UK cars? I am seeing more and more new vehicles with a mass of tail lights covering the whole width of the vehicle. I really find these these to be hazardous as they dominate the road ahead so much that other vehicles and especially cyclists become marginalised. I thought rear lights had a specific marker function towards the edges of the vehicle. These new lights seem to be just trendy, selfish and excessive.