So far ÖBB has ordered 31 class 4746 suburban EMUs and 70 class 4744 regional EMUs at a cost of €590 million. Class 4746 will be used on Vienna S-Bahn services whilst the regional sets will go to the provinces of Lower Austria (35), Upper Austria (17) and Styria (18). The S-Bahn variant seats 244 passengers while the regional version will seat 259.
The first two class 4746 sets will enter service on Vienna S-Bahn Line S80 from Vienna Hirschstetten to Ebenfurth and Wiener Neustadt on December 15.
Siemens will deliver 34 trains by the end of next year and the entire fleet will be in service by January 2018.
All Cityjet EMUs will be prepared for installation of ETCS equipment while some class 4746 trains will be fitted with ETCS from the outset. These will be used on semi-fast services between Vienna and St Pölten via the new high-speed line.