Headlights appear to be pretty straightforward. If you have a car — and not a motorcycle – you have to have two headlights. Those headlights also have to work, of course, but you'll have to watch out ...

In the past, seeing blue lights on a car meant the police wanted our attention. Nowadays, some regular cars have headlights that seem to glow with a blue tint. Newer LED headlights glow brighter than ...