Just a couple of observatons I've noticed with my car and wondered if anyone else has similar problems.
First one I've noticed is at certain speeds, most noticably 70mph when it raining, it's almost impossible to use the drivers door mirror because the way the water from the windscreen swirls around the side window making it well nigh useless.
Secondly when I have my wipers set to intermittant, also have a rain sensing windscreen, if the rain is heavy the rain sensor works fine if anything can be a bit OTT with jumping straight to full speed at times. But if the rain is not that heavy but a lot of spray I've noticed that the sensor doesn't really work too well and the screen can be really obscured before the wipers come on.
This made me think how does the sensor work and was wondering if it needs heavy rain drumming on the screen to make it kick in because it seems like fine spray which can quickly build up and obscure your vision doesn't seem to trigger it too well.