If you're in your car traveling at the speed of light and you turned the lights on, would they do anything?

This is just a guess, you understand...but I think what would happen is, all that light that projects ahead of you at regular speeds would fold back on itself like a roadmap and would leave a thick dense pad of light on the front of your headlight lenses. I think. Yeah.

at speed of light time for you would have stopped. plus the distance from front to back would be zero. and your mass would be infinity. and can only calculate that with a limit function (f)x right arrow infinity symbol. that prevents matter from reaching the speed of light.

Are they solar lights?

You probably would not be able to do anything because you would be in another dimension at that point, or time has slowed down to nothing.

Nope.