Well, unless they all work as advertised straight out of the box

Aventra delivery: unit No 345002 for the Elizabeth Line en route from Old Dalby to Ilford depot at Caledonian Road & Barnsbury on 9 December 2016. This is a seven-car unit for operation on the first route due to be taken over by ‘345s’, Shenfield to Liverpool Street; the trains for the full cross-London service will be nine cars long.
Eiki Sekine

New Hitachi train: unit No 385102 on display inside Shields depot, Glasgow, on 11 December 2016. This pioneer unit for the Edinburgh to Glasgow electrification project was due to undergo night-time testing between Dunrod and Wemyss Bay.
Ian Lothian
Waterfront’s recent Rolling Stock Procurement Forum 2016 combined speakers at the sharp end of rolling stock procurement policy (if that’s not an oxymoron), funding and legal issues. This was Waterfront’s first rolling stock event and was well attended with a range of delegates: it had me on the last page of my current notebook by the end.