Yep - I agree who knows if this is an inteded feature. It is still a nice little feature to know about. I'll bet you all the secret agents use this feature - LOL!
Was about to post a question as to why my REAR FOG LIGHT(not Plural) doesn't have a buddy on the otherside... lolNot all, mostly Euro models only. Only one side of the rear fogs lights up, depending if it's a left or a right hand drive.
Just went out to look at the rear fog light output in the dimming day, and I gotta agree it's really bright, too bright to be on haphazardly. Now I know why the little red light comes on only for the rear fog, it can be a hazard to following traffic I would assume...AFAIK, one rear fog lamp is DOT regulation. in the US only emergency service vehicles can have two rear fog lamps.