From their announcement:
The next two Panzertriebwagen are done. First, a Kommando Panzertriebwagen and a Infantrie Panzertriebwagen. The price is € 14.90 per Panzertriebwagen with one track section. So you can now create your own armored train. Do you like them? Send your order to heer46@gmx.de.