1- It is a Volvo, which is very rare in Germany, although Scanias have turned up in some fire brigades in the last few years. As we probably all know, Germany is a huge fire appliance market (not least because it has over 20, 000 volunteer fire brigades) and is home to Magirus-Iveco, Mercedes, MAN and numerous fire appliance body builders including Rosenbauer-Metz, Lentner and several others.
2- It also has an unusual blue striped livery, not shared by many ( if any) other German city fire brigade. Although they have become more colorful in the past decade, and in some cases exhibit quite bizarre graphics, blue is not a choice which crops up very often.
Note that unlike many Volvos and Scanias in UK fire service fleets (as well as Renaults in France and Poland) this does not make use of the factory crew cab. In Germany rescue pumpers have rear seating for four or five crew members, as well as a very comprehensive load of DIN mandated equipment. This means a much bigger crew compartment is a prerequisite, as illustrated here. It also means that crew members can grab a lot of useful gear and have it in their hands even before they exit their ride, which seems like a sensible time-saving idea.
Added by Jacques PETER on 05 June 2023.