[GregW / Oregon]

I've looked more closely at BMW's design of the halo lighting system for the M3. The reason the inner rings are lit much more brightly than the outers is they receive light directly from the H8 bulb via a reflector. The cornering lights set in front of these bulbs, but there is a lot of room for light to pass through. In additon, the cornering light assembly has holes which allow this light into that center lens.

In contrast, the outer rings receive light optic "light pipes" with only two small aperatures to access the H8 bulb through its reflector. It doesn't stand a chance of being as bright as the inner rings by design.

The solution to somewhat equalize them in this HID case would be to interrupt some of the direct light with a metal baffle of some sort right behind the cornering light reflector. The danger might be trapping too much heat. Also, I think, due to limited access, this might be almost impossible to do without removing and disassembling the light unit. I do think the inners are a little too bright with the HIDs. Hmmm, what to do...