This is a terrifically dumb thing to do on a roadgoing car. The stock headlighting system on our cars is weak enough as it is without subtracting the enormous amount of light that any kind of a blue filter will subtract -- whether it be from a blue bulb inside the sealed beam (Sylvania Silver Star, Wagner TruView), a stick-on blue film, or spray-on blue tint. You may think the light looks "whiter" or that there's no significant loss, but neither is the case. Please, folks, we're talking about safety items that are barely adequate to their tasknot fashion-accessory toys to munge up with blue gunk.
