I find cars are more respectful, more cautious and give me wider berth when I ride in the dark. They see my lights and immediately either slow down or start moving into the other lane. I've probably said this a million times on these forums, but I feel MUCH safer riding in the dark. Thanks to lights cars can see me well, I can see them well, and there is much less traffic. Just make sure that you are highly visible. I've got two headlights, two tailights, 3 fireflies (one on my camelback and one zip tied to each wheel), ankle reflectors and then reflective tape on my bike and my helmet. I love it!