On the Merseyrail network, the old Class 507/508 units are being replaced by modern space age Class 777 trains. The first one entered service in January 2023. so it was was time to go and take a trip to Liverpool and ride them for the day!
More info on the new trains here : https://www.merseyrail.org/new-trains/your-guide-to-the-new-trains.aspx
NOTE: The part where you can tap your foot and re-open the doors only works where the train is at a stand still at a terminus station - as it was for us at Kirkby - not scheduled to leave for another few minutes, so we weren’t holding things up.
With thanks to David Powell at Merseytravel.