In the nineties, the Austrian Federal Railways (Österreichische Bundesbahnen or ÖBB), was in need of new electrical locomotives that could replace the older machines. The new models needed to be able to drive both the high-speed trains and the heavy freighter trains. The Taurus, that was built for the ÖBB (The Taurus is the official nickname of the Siemens ES64U2), was introduced for the first time on the 12th of July 1999 by Krauss-Maffei in Munich Allach. From January 2000 onwards locomotives are used in Austria. The Austrian railway company (WLB) owns a 30.4 km long tram- and train connection between Vienna and Baden. Besides that, WLB has a permit to transport goods in the entire European Union. For this reason, the Siemens ES64U2 was purchased.