Well, I don't understand what the point of the 380s is. Why didn't they just order more 350s?
As for 350s, I suppose SWT's fleet is helped by the fact it is maintained by Siemens rather than in-house, but I thought the same was true of London Midland?
The 380s have a number of changes compared with the 350s, not just in carrage length and door end configuration, but there have been a lot of both cost saving and weight saving changes.
The main one being a 'fly by wire' system for the control systems, saves a tonne of wiring if I'm remembering right, a lot of the new technology that is to be fitted to the Thameslink stock is effectivly being trialed on the 380s. Such as the 'fly by wire' systems. (Ask if you want an explanation like the DEMU DMU EMU EDMU explanation a while back).
If I'm thinking right, theres also new bogies, traction motors, door mechs (I beleive the're electric but stand to be corrected), and a fair few other modifications.
Also, another vote for 19" seating in 2+2 here.
Because of the mixture of long and short distance routes, and a desire for stock standardisation, I'd say whats needed is an interior layout similar to the 185s with larger 'milling around' areas near the doors, and a damn site more grab points, somthing I think is missing from the 185 interior.
Everything else works reasonably well, the Disabled area at the end of the 1st class coach works IMO, as does the bike storage area, although because of the LSE style of commuting it may be better to have this as a segrigated area at one end of the unit, perhaps intergrated with the disabled seating area.
What kind of 1st class provision is being made? As I understand the're to be 4 car units being ordered so that they can be formed into 4, 8 or 12 car formations, would a layout with disabled / bikes - 1st - std work, and what ratios would it need? (I've never travelled down on thameslink so don't know)