“If the car is traveling (just less than) the speed of light: The headlights look normal to you driving the car. The car and light from the headlights appear frozen to everyone else “
If you see it traveling at just less than the speed of light how is it that it appears ‘frozen’?
Because of time compression/dilation (depending on your point of view). To you, outside the situation, time for the car does not appear to be advancing i.e. it is frozen.