Bletchleyite
Veteran Member
This is not like Chiltern. The DfT forced the 170s to be converted to 168s and be sent to Chiltern, it's in their requirements for the bids for the franchise that the 170s will leave. The 171s are not leaving until a suitable replacement goes to Southern, Southern do not have to let them go like TPE did.
Currently the 171s are not leaving Southern.
And EMR aren't really stuck without the 170s as they can just continue to use 15x.