Actually, you'd want to get rid of those in car displays that require you to take your eyes off the road to do almost anything now, and will also spoil your night vision. There was an episode of Radiolab that was talking about this, and they made a very compelling case for it, along with those super bright headlamps that ruin your night vision when they're equipped on an oncoming vehicle. Tellingly, almost all increase in traffic accidents we've seen recently have happened at night. Pedestrian accidents with trucks haven't really gone up more than other vehicles either.