I've searched the forum a couple of times looking for this topic without success. I'm curious about the factory illuminated door sills but the Mazda website doesn't have a photo of them or any details other than the price. My dealer parts guy was unable to find anything using his resources either- he wasn't even clear if they could be ordered, they didn't appear to be in stock. I think the plastic sills on the CX-9 are sort of low end for such a nice vehicle and maybe the GT and Signature at least would have something aluminum to match the other trim in the cabin. My last two cars had them and they're a nice touch even though they don't get seen very often.