The 1974 built two system locomotive 181 204 (can run under 15kV and 25kV voltage systems) with the IC 187 from Stuttgart (Germany) to Zürich (Switzerland).
For the jubilee 80 years of DB AutoZug, the locomotive is painted in Auto Train livery since September 2011. The train passes the viaduct of the closed line Rottweil – Schömberg.