91 80 6191 951-3, Vectron DC demonstrator owned by Siemens. This locomotive is equipped with a Faiveley Transpact C-AKv coupler, the latest development in the endless story of a SA3-compatible automatic coupler that may one day replace the traditional screw coupler. Thanks to a "mixed coupling" it can easily be coupled to conventional coupling hooks. InnoTrans 2010, Berlin, September 2010.