Depends, more and more production cars are shipping with factory fitted HID's, they tend to give out a very clear but bright light.
The lights that I find to be more blinding are the after market high intensity bulbs (usually 80/100w), these are not road legal, they are OK for main beam but blinding when on dipped!
Also, there is a muppet local to me who has fitted HID's to his Saxo, HID's only work on projector lights - such as the ones fitted to the b!
As for the legality of them, well - that one is open for debate! As the b is fitted with projector lights it would be possible for them to be legalised (if you were willing to go through the hassle of having them assessed but a DVLA engineer etc) and proving that they meet the EU standards required for HID's........
Mine flew through the MOT with no issues, I have found that as I drive it every day the HID's have made night it has made it significantly safer (and more comfortable)..............
Al, if I get a GV9 in the post I will hunt you down!!