SR(exLSWR) rebuilt 3SUB EMU
Originally built by the LSWR, converting loco hauled coaches with distinctive torpedo shaped cabs . They were an immediate success, and the SR then rebuilt the bodies on longer chasis to handle more passengers. They normally ran as 3 car units(3SUB) but an extra coach could be insered (4SUB). In this state they survived into BR days.
Driving motor brake composite coach
requires chassis, bogies and finishing
O scale(1/43.5, 7mm/ft)
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more info about LSWR 3SUB EMU here
https://en.wikipedia.org/wiki/SR_class_3Sub
more 3d printed models from Recreation21 here
http://www.rue-d-etropal.com/3D-printing/3d_printed_designs.htm