So called "cornering lights" are of questionable use in daytime. My pet theory is that they are for "forgetful" drivers of certain makes who seem to find the responsibility of using indicators a little onerous. As to night time use - BMW "X"s actually have cornering lights for dip and another set for main beam - 'nuff said.

Puddle lamps, HIDs, DRLs, high level brake lights, orange side "marker" lights now becoming common and not just on coaches and lorries...My Montego had illuminated indicator and wash/wipe stalks (I got them mixed up for all of three seconds on my first drive!) My Astra "F" had an orange downlighter in the rear view mirror to bathe the gear lever in ambient light (those night-time gear changes are always so challenging....) I hired a US Ford Focus one summer and found illuminated footwells and cup holders with a choice of SEVEN colours!

Where will it all end?? Any predictions as to the next unlikely place a manufacturer will think of placing a light source?

Yes, I've been saying that for some time. We're in the ludicrous situation where we still having lighting restrictions based on wattage. This takes no account of developments in lighting efficiency.

Quite soon we're going to be in laughable position where a 75 watt dip halogen H4 is illegal (vehicles post 1977 IIRC?), but a 55 watt HID dip, kicking out rather more light and more tightly-focussed with it, is perfectly acceptable. I used to run 75/100 H4s on my old MGB and nobody ever complained, yet driving an HID equipped hire car the other day about 50% of oncoming traffic flashed me.

Roll on LED lighting, we'll be able to fry cats at range. Better still, 55 watt lasers. You won't be able to see much, but anything you do see will have a neat scorch mark on it......