Do you really see any TOC wanting to use 185's on local or shortish distance semi-fast services ? In their present form, they are far too fuel-hungry for such services. So, do you replace the engines with lower power alternatives, or remove the engine from the centre coach ?.
Or would a better alternative be a multi-operator swap, with the 185's being sent to somewhere like Waterloo - Exeter ?
SWT wouldn't like that as the 185's would have about 26 seats per 3 coach set less than the 159's which wouldn't go down well. However it would mean a more standardised fleet as most of their trains would then be Siemens Desiro trains.
