I know it has been looked at in the past but I would not be surprised that when the class 450's are due a full overhaul (top and bottom) the next franchise holder could make them 2+2 with more standing room to help with station dwell times.
I also wouldnt be surprised a certian bidder looking at a large order for 707 10 cars to replace the 455/456 by the end of the franchise. With the DFT target for dwell times on the Suburban routes the 707 meets those requirements.
With the plan for the Reading and Windsor being every 15 minutes more trains instead of shorterrors trains is likely.
The 455 doors open much more quickly than the 450s.
Perhaps they could make the 455s 2 seaters, thus increasing the number of seats; make them 12 cars if possible or 10 if not and run them on the Portsmouth line. That would help reduce dwell times. If 2+2 isn't enough make them 3+2 if train space permits.
They could then get some 707s for the Suburban lines. The Portsmouth line commuters don't like 450s, so these would be a change for them.
Last edited: