Saw this YouTube video and well I have absolutely no idea what he's sayin but the strange green and tan interior caught my eye, car looks black but could be dark green I have no idea. Obviously this is probably a very rare option and I've only seen in on xk8s (well on the models at least)
https://youtu.be/IRe7Q7cWRz0

 

So, at the bottom of the video on YouTube, when you run your mouse across the bottom of screen, you'll see CC (closed caption), prompt it to turn it on...(you'll want to turn it off for future videos when done). Then go to settings next to it (gear looking symbol) and prompt it, you'll go to Subtitles and see it says German, prompt it and a list of languages appear...pick your preferred language and it will translate for you. You may have to pause to read it, it doesn't always translate completely or correctly.

I have a Austrian video in my signature of a band where you don't have the CC option. They are a cool group (she's cute to) and I just love the music.

 

yes it’s a european thing

 

Seen it on several X308's, 2 in Japan, 2 here in Taiwan, and 1 in Belgium, all on Sovereign's and Daimler's.
Not as rare as you think.
I personally don't like it at all, but all owners considered it as very special.

 

I've seen that in one x300. I do not like it at all.

 

apparently, I never see green us interiors but my euro w123 was all green. Kinda quirky