I'm interesting in replacing my stock headlights on the '3 to Xenon-based HID lights, but I'm torn between 5K and 6K versions. The blue-tinge given off by the 6K models is nice, but I find that pure-white lights might even look better. I'm also more interested in gaining more distance in visibility, which might make the answer to my question an obvious 5K model choice. However, I'd like to see photos of both models, if possible. Anyone?