Is it really true that you can't get factory installed parking assistance in the US? I had a limited selection of US Spec vehicles I could order from Stuttgart, but I can't imagine that you can't get the nice parking assistance like in europe? I added the mercedes dealership aftermarket quickpark and it's bad enough I didn't get the visual indicator on the dashboard but it looks like crap. I've ordered the European C63 rear bumper with parking assistance integrated but I'm still dumbfounded by the idea that the US spec simply doesn't have this available.
Here's the pics so you can see what I'm talking about, notice the european sensors are flush to the bumper while the US spec has rings hanging off the bumper.
US SPEC with Quick Park
Euro version: