Most car manufacturers, including Tesla (below), say that you should use manual headlights (rather than auto) in poor visibility, such as fog or heavy spray.
Today, a white Tesla Mode 3 passed me then in front of my eyes, pretty much disappeared into the spray. As it passed me, its rear lights were on, then, a few seconds later, they turned off. Almost certainly still under auto control as it was most definitely manual lights weather with spray from the motorway. Compared to the surrounding cars, and exasperated by the white colour, it was much harder to spot amongst the spray. Reasonable visibility when no spray was still there, just that spray from a car, or cars was enough to put us a bit of a invisibility cloak. Cars that had their lights on were much easier to spot.
I am not suggesting that in this particular case that it was a condition that may have caused an accident, unless someone else was travelling at stupid speed into a cloud of slower moving mist, but it is an example of auto headlights (from any manufacturer) struggling in certain road conditions. Had it been fog and as reported elsewhere Fog lights turning off automatically , turning lights off would then turn off rear fog lights and they would appear not to auto turn back on again. In those conditions it would however be a different story and a potential for someone to think that they are visible when they are not.
Today, a white Tesla Mode 3 passed me then in front of my eyes, pretty much disappeared into the spray. As it passed me, its rear lights were on, then, a few seconds later, they turned off. Almost certainly still under auto control as it was most definitely manual lights weather with spray from the motorway. Compared to the surrounding cars, and exasperated by the white colour, it was much harder to spot amongst the spray. Reasonable visibility when no spray was still there, just that spray from a car, or cars was enough to put us a bit of a invisibility cloak. Cars that had their lights on were much easier to spot.
I am not suggesting that in this particular case that it was a condition that may have caused an accident, unless someone else was travelling at stupid speed into a cloud of slower moving mist, but it is an example of auto headlights (from any manufacturer) struggling in certain road conditions. Had it been fog and as reported elsewhere Fog lights turning off automatically , turning lights off would then turn off rear fog lights and they would appear not to auto turn back on again. In those conditions it would however be a different story and a potential for someone to think that they are visible when they are not.
