And they allow indicators which are very close
to (and therefore masked by) headlights or brake lights. Some VW Golfs
are guilty of the rear indicator which is almost invisible when the
driver brakes. Almost every car made in the last 30 years has its front
indicators in the same housing as the headlights and so very hard to see
at night on an oncoming car.

spot on the worse ones are the indicator in the middle of the circular
parking light.....but loads of front indicators are away from the
headlights though..... also LEDs shouldn't be allowed on cars.....