It's a C63, but I think that doesn't make any difference. I was looking at the Thule wingbars, as I'd quite like something designed to be aerodynamic and reduce wind noise - but having looked at them in person, they are incredibly wide. 90mm - meaning that the majority of accessories which are not newly released Thule ones won't fit. (For instance the Thule Alpine 100 roofbox I have has only a 50mm gap for the rails to fit into.) So I wonder if anyone has any of the Mercedes official ones they don't want any more? I believe the correct part number is A2048901493. And are they less than 50mm wide?