Hello Antony
The Revo carrier fits my AMG GTC perfectly. The sunroof and spoiler work perfectly when the carrier is installed!
The 100% waterproof bag comes from “Decatlon” and is called TRIBORD.
If you have any inquiries from Switzerland, please feel free to use me as a reference for your very good product!
Kind regards from Muceno, Erich and Mirjam
silver amg gtc roadster photographed from the side in a garage with a luggage rack fitted to the trunk carrying a black bag