Stadler was awarded a contract worth up to £700m by Liverpool City Region in February 2017 to supply and maintain 52 four-car EMUs to operate on the 750V dc third-rail network serving Liverpool and Birkenhead. The contract includes an option for an additional 60 cars and the construction of a new depot at Kirkdale.

The first train is due to arrive in Liverpool for testing before the end of the year and are due to enter service in 2020.