auto adjusting headlights

I drive a water truck for the oil field and I don't how many time I flash my brights at pickups just to find out they have a trailer on the back or a heavy bed. Auto adjusting headlights would be nice so that they are not blinding other drivers.
brad a 01/05/2013
I think those come in fancy, high-end vehicles. I agree, they would be much more useful in pickups, which often have a load altering the lights' aim.