[mikestew]

Then I read about red light is specifically used in car dashboard lighting and airplane cockpits because it helps with night vision.

Given that there is a stream of not-red lights shining at me in the opposite lane, I've been skeptical of this claim since Nissan did it in the 300Z like 30 years ago. It's there to look cool, not be useful. There's a subtle design lesson in there as well, I'm just not sure what it is.

[jasonv]

When I took an astronomy class in college, we'd have "night" class on the roof, with telescopes, and star maps.

We were instructed to bring flashlights, but cover the lens with a red layer, to keep the pupils from closing too much, so we could both look at stars but read our star charts.

The headlights in the other lane don't disqualify the benefits of using red lighting inside the car.

[rbanffy]

You don't need night vision when headlights are visible in the opposite lane. You'll appreciate it when you are driving on a dark road on a moonless or overcast night.

[kazen44]

what about driving in remote areas without street lighting?