Our car came with it, since we bought used. However, it may look like CF, but don't let it fool you!

It's just plastic! It's the same trim out of the C280 sport... So I'm sure your Mercedes dealer could do it for you for a few pretty pennies. I don't know the exact cost. I would like to switch it out for Silver CF especially, or at least black CF, but I can not find real CF to fit it. So in the interim, I just stick with the plastic. It's fine, and looks cool, but I'd rather have it real. I mean, the weight savings with the real CF... The plastic is just SO heavy! Get real!