The thing is that line is 100% new(ish) type trains now, all with automatic doors and air conditioning. Seems a bit odd to be going back to those things.
I dunno. The OLD slam door stock had more legroom and comfier seats (of course the new stuff may not). What's so great about automatic doors? You still have to hope the person nearest the button is switched on enough to push it. I like the old sort, and leaning out to reach the handle. And I like the sound they make slamming, just before the off.
Coming back from a cycling weekend a couple of summers ago, in a heatwave, the nice lady guard at Berwick said she was leaving the windows down to get air into the carriages, it was lovely. Unfortunately, just after Newcastle, that train broke down, and we were shipped back to Newcastle and transferred to a modern train, no open windows, and two train loads of people on one train. Not so much fun, and the aircon did bugger all.
The only advantage of sealed modern doors I can see is to prevent Darwin award candidates sticking their heads out of the window. (and, more seriously, perhaps to help the disabled, but they still have to wait for the wheelchair ramp and help anyway).
My query is, why is the step down to the platform so huge at many stations? At Reading, it's getting on for 12-18", and I've seen old ladies having to haul themselves up with thier suitcases (I'll help if I can of course, but I can't get on at every door!). Why can't they just build up the platforms?