Just because I can't read the license plate of the car approaching from behind doesn't mean I can't see the car. Maybe I can't tell if it's a Hyundai or a Toyota (Who can anyway without reading the nameplate?) but I can see that I don't want to move over for a left turn in front of it.
heh I can usually tell the make and model of most vehicles even at night just by the shape of their headlights or tail lights.
