This building is simply awesome. It's designed by the french architect Edouard François, for the hotel chain fouquet. The façade is a replica, in grey concrete, of the monumental façade of the fouquet hotel around the corner, but with new window holes. Address: 46 avenue Georges V - Champs Elysée.
This is a very cool new building, designed by some of my favorite french architects "peripheriques Architects". For more pictures and drawings, see links below.
The "Citroën Showroom" at Champs-Elysées, looks like it ready to open soon. But already delayed more than a year, i suppose that we will just have to wait and see! The Building is designed by "Manuelle Gautrand". http://www.manuelle-gautrand.com/