In a similar fashion as the generation change by the introduction of Desiro City® train on the UK market in 2013, Siemens has now launched a new vehicle generation called Mireo® for the commuter and regional train market in continental Europe. State of the Art and Possible Innovations The low floor vehicles currently on the market differ only marginally, both from the operator’s and from the passenger’s point of view. The configuration of interfaces relevant to passengers is largely determined by the Technical Specifications for Interoperability relating to Persons with Reduced Mobility (PRM TSI). For the manufacturers the choice of components is based on similar technologies and suppliers. For the overall concept, most manufacturers have stuck to the typical unit size with about 200 seats and a length of about 70 m for a four-car articulated train with five bogies.