RT-OO-175-TFW-103A Class 175 - Transport for Wales livery 175107 3-car DMUExpected Delivery Q3 2026 (Subject to Change at Manufacturer's Discretion). The Class 175 and Class 180 are members of the Alstom Coradia family of units and share many common features and parts. The Class 180 units are a 5 car 125mph high speed express unit and 14 sets were ordered by First Great Western and given the brand name 'Adelante'. Intended for high speed express services to South Wales and later used for fast commuter trains from Oxford,