Thanks Guys!
Michael your right on with the benefits of good lights. A few years ago I invested in expensive but super clear, off-road, daylighters, essentially for that reason. I never really have off-roaded at night, except for the odd 'rescue your stupid buddies missions,' but I had them for winter driving. They make a huge difference.
Unfortunately, they were driving in 9:00am daylight and the ice was just after they crested a hill so they never had a chance to see it coming. That particular spot is known for icy morning conditions as the sun never hits it until noon but it wasn't a road they frequented often enough to be aware.
I am certainly very thankful to still have them in my lives.