Under the designation class 445, the Bombardier "Twindexx Vario" and Stadler "KISS" double-decker electric multiple units for regional service with a maximum speed of 160 km/h are combined.
The Twindexx Vario are in operation in several regional networks of Deutsche Bahn since early 2018. The KISS trains (the german acronym stands for "comfortable, innovative, high-performance suburban train") in Germany have only been purchased by the East-German railway company ODEG until now, operating them around Berlin since 2013.