In message , Martin Petrov
writes

I've seen two this morning, both new kind, both destination Lewisham.
one on the upnunder and one at Shadwell.

All the 3 car trains are going to be "new ones", I believe? (prepared to
be told otherwise, of course....!)

The older types are quite capable too, although it may be a policy
decision to use new ones to make a point.

In any event, it's not possible to mix old and new cars in a formation.
--
Steve Fitzgerald has now left the building.
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