Sometimes I think it's just the feel of maybe the motors, wheels and brakes. They don't feel the sharpest on the Picc Line when I have ridden it.What did you notice, specifically that makes them knackered? I used them recently too but can't seem to work out what it is, given that the interior still looks modern.
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I think for the 710's and 345's the displays are not placed optimally for longitudinal seats. Displays are better than dot matrix but dot matrix was simple. I think the issue is they haven't figured out how to make the displays ui easier to read for passengers, it feels like too much information to me sometimes.That will be interesting, the existing scrolling displays are not very good a lot of the time.