Also on some of the cars with EU daytime running lamps, they put the LEDs really low, where only fog lights were once permitted (fog lamps were illegal to use when not foggy), presumably firing up or entirely non directional. These are surprisingly good at dazzling, especially when roads are wet. There's a few makes doing this, but a couple of models are particularly problematic.
All EU cars have DRL now. But the LEDs are basically what used to be the marker lights on any headlight (the first step in turning on the headlights). More commonly now they are overlapped with the signal lights so when signaling the LEDs just turn from white to yellow. But they're almost always still in the headlight block. When for some reason a manufacturer decides to put them in the fog lamps they run at reduced intensity. Just like when the fog light turn on towards the side you are cornering to help with more light.
