> Hmm, in broad daylight I don't notice cars any quicker if they have their 
> lights on but I guess I can't speak for everyone.

It still amazes me how some people *don't* notice a car approaching from 
behind.  I don't know about everyone else, but when I see something moving 
out of the corner of my eye it gets my attention.  Then it's blatantly 
obvious when they suddenly see you :-)

> As for the waste, well, I am speaking as an owner of a 1.1L tiddler whose 
> idling engine pitch significantly alters when the lights go on! :-) Even 
> so, 0.1% of 30 years of petrol multiplied by the number of car owners and 
> all that...

...comes to 0.1% :-)  I'm sure that far more is "wasted" by other methods, 
like air-con, going too fast, having your windows open, braking, etc.

Post a reply to this message