The ex London Brighton and South Coast 0-6-2 E4 class of radial tanks were first announced by Bachmann at the 2013/14 product launch in March last year and detailed on this blog here. Work on their development has been ongoing and Engineering Prototype (EP) samples have now been released by Bachmann
Just from the photographs alone this looks to be a fine representation of the E4 Class, noting the characteristic Brighton style buffer beam extended lamp irons for the middle positions and the two different coal rail arrangements (the front view has the later style backed rails). I also note following criticism of some of the recent Hornby models the smokebox door dart handles also appear to be moulded rather than a separately applied item, I wonder if this will gain the same level of criticism?
A preserved example of the E4 class can be found working on the Bluebell Railway.
Edit: 21/01/14 Bachmann have now confirmed that the Smokebox door dart handles will in fact be a separately applied item and they also accepted that the front wheel splashers, that some have mentioned as appearing slightly to large, are a compromise due to the 00 wheel flange standards.
Edit: 24/01/14 further pictures of the E4 EP can be seen here.