In the original replacement of carriage ACN21 with BCZ257 the first class seats ex ACN21 should have been removed and placed in BCZ257.
Once the SG cars are all removed from BG V/Line will have 2 x Z sets captive on Geelong Commuter services., being 59+57.
Originally both cars 257 & 259 where to be converted to BZN configuration, as the project was halted with the final conversion of BCZ262 to BZN.
Of interest is the fact that cars BS218/219 are older than some cars in operation on "Heritage" trains.
Also carriage BS215 was never refurbished internally as per the other BS cars where with separate toilets & washrooms and retains these up to today, as it does the former 1950's cast metal windows which where also superseded in the 1980s refurbishment program with fully sealed types.
The internal paint in the washroom & toilets & flooring material dates from the 1960s, no S type carriages in preservation have these materials to date.
Car BS 215 will eventually become an ideal candidate for preservation with all that being required is the removal of the carpet & seat fabric and replacement with the former leather-vinyl seat upholstery & carpet matting. The car also retains the reading lights above each seats, such passenger amenities where deemed not warranted by V/Line as was the floor heating which was removed., I guess managment are to used to there climate controlled company cars....
Also a feature of 215 is the vinyl window blinds, also replaced by more trendy but less effective curtains in the remainder of the fleet.