Marklin’s newly released 88185 class ‘C’ express locomotive of the Royal Wurttemberg State Railways features Era I paint scheme from 1915. The model features improved detailing and motor compared with the earlier version and includes improved side rod details and brushless motor.
The 88185’s cab has been the location of the backside of motor in the early release as well as this one, but the large brushless motor significantly protrudes through the cab of the 88185 thus maybe be seen as a less successful release in recent memory of Marklin Z steam locomotives featuring the new style motor. As for running and performance this locomotive runs very well with smooth acceleration and deceleration even at slow speeds.
An elegant steam locomotive with early streamlining characteristics including wind splitter cab.
Era I around 1910-1915 is as early as Marklin has gone thus far in the mini-club line-up – having one of the Wurttemberg locomotives is essential equipment for pulling Marklin’s wonderful coaches for this railway including: 87940 (2001/2002), 87950 (2001/2002), and 87960 (2001/2002). But the soon to be released Wurttemberg coach set 87009 is another option featuring for the first time interior details and gas tank installed on undercarriage of the class Di Wu 04 and Ci Wu 05 open platform coaches.
Marklin 87009 
Maybe a future release of an Era I baggage coach and mail car will be a possibility.
Railex’s (Germany) models in Z gauge include Wurttemberg coaches from the 19th century made of brass and released a number of years ago with designation “Wurttemberger Zug – Set 1”:
Siding: Railex models in Z include coaches, freight cars, and locomotives with a primary focus on early 19th century German trains. Locomotives although very finely detailed and handcrafted lack their own power, ghost cars are generally used to propel the trains with motors hidden in coaches. Railex models are unique in Z having released many limited models exclusively in metal of prototypes not generally touched on by other manufacturers.
Siding: K.W.St.E. is the abbreviation for Koniglich Wurttembergischen Staats-Eisenbahnen with English designation Royal Wurttemberg State Railways.