They're single doors.
And yes, the 1/2 2/3 door layout is necessary, when they're trundling down the classic lines, especially through the Medway towns, when they are effectively providing a local service.
No, I get that, I meant in any potential replacement to the 395s, is it worth having the standard 1/3 2/3 double doors instead of the wide single doors, as on the 395s?
Because up until now (including the 395s!) I've never seen a high-speed train with 1/3 2/3 double doors.
Also, I know reclassification will never happen, but purely hypothetically would the 395 be better placed as part of the 8xx classes?
They are high-speed, they are a Hitachi A-train, I don't know what the exact criteria are.
At risk of repeating the obvious, I think one thing that even I didn't expect when I first saw a 395, is that while they
are high speed trains, they are high speed
regional trains.
They do not provide, and are not intended to provide, an InterCity level of service.
If you look inside a 395 it is set out in a similar way to an Electrostar (or similar).
1/3 2/3 doors, no separated vestibules, each 6-car set has only 2 toilets, no catering or seat reservations.
Indeed they cannot attain HS1's top speed of 186 mph.
The InterCity trains operating on HS1 are the Eurostars, and they do provide all of those things.