There have been some pedestrian accidents where the pedestrian did not hear the new hybrid cars (running electric) approaching them.
A study shows that while regular combustion engine cars are heard at approx 40 feet, many of the hybrids, while running electric, are not heard until somewhat under 20 feet.
As a result there is legislation pending at the Federal level and in some states to require some sort of combustion engine sound to emanate from these "silent running hybrids or electrics".
NO, I am not making this up.
This raises the question of "choosable" sounds and downloadable "run tones" for your hybrid/electric.
And NO, I am not making up that last part. Wonder how this device will affect new car prices... duh?
This also raises an interesting political question.
If I were a politician, would I want my constituents to know that I worked hard and voted for (or against) health care reform, or rather that I spent my time working hard and voting for (or against) "run tones" for silent cars. Keep in mind that the study(s) I mentioned before were very likely paid for with our tax money.