When you drive in the dark, if there is no ambient lighting, all you can generally see of a car approaching or behind is its lights, and you can definitely judge distance from that. This is noticeable particularly on motorways - it's very hard when you start to drive but becomes quite natural after a time.
When you drive in the dark, if there is no ambient lighting, all you can generally see of a car approaching or behind is its lights, and you can definitely judge distance from that. This is noticeable particularly on motorways - it's very hard when you start to drive but becomes quite natural after a time.