I had seen some pictures of them and had entered them here on the page some time ago.
The information I have about them can be found at.
http://phototrans.eu/15,467498,0.html
Link für Foren: [URL=https://phototrans.de/14,712332,0,VDL_SBR4000___Sunsundegui_Sideral_8315_FJJ.html][img]https://phototrans.de/images/photos/original/840/712332.jpg[/img][/URL]
HTML: <a href="https://phototrans.de/14,712332,0,VDL_SBR4000___Sunsundegui_Sideral_8315_FJJ.html"><img border=1 src="https://phototrans.de/images/photos/original/840/712332.jpg" alt="Taken from transport.wroc.biz"></a>