6500K would be seriously blue, going on purple. 6000K is "brilliant white" and looks blue to oncoming traffic. I don't believe for one second that the stock HIDs are 4500K; I'd have said at least 5000K if not 5500K would better describe the colour I'm seeing but then light can be deceptive
I still say the visibility pack is the best thing on this car. It's been bloody amazing over the last thousand miles or so: most of which have been at night. Travelling down unlit, major roads in this crappy weather with the active high beam thingy is a truly unique experience and makes SUCH a difference to my driving and the adaptives on twisty B roads have been equally good
