let me take your riddle literally..
your headlights are on the front of your car!!
no matter what speed you go, as long as your headlights are on, there will be some refraction through the glass and some reflection from the inside of the headlight, so in order to see your headlights, all you need to do is stick your head out the window and look at them and you will see your headlights..
I don't believe you would see a beam of light from your headlights the same as if you were driving at 80 k's along a road...