jerryc41 wrote:
Most cars have daytime running lights (DRL) now. Do you remember an early attempt at DRLs, probably in the 1960s? You could buy a small white light that you put in the center of your grill. It would turn on when your car turned on. They were fairly popular, but the trend died out.
When it came time for real DRLs, it was a political nightmare, which is typical. Back in about 1957, when GM wanted four headlights, there was a nationwide scramble to change lots of state laws to allow them. Even now, most states limit the number of lights you can use on the road. That's why added lights do not light up when the high beams are turned on. There are also restrictions on the color of lights you can have on your car.
Most cars have daytime running lights (DRL) now. ... (
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I have DRL's on both my cars. I can't tell you how many cars I see without their lights on when it's almost dark. DRL's allow me to be seen clearly everywhere and that's a safer way to travel.