Iveco-Magirus Multitrailer frontMultiTrailer from Iveco-Magirus, here seen at the Interschutz exhibition in 2005. The avantage from this kind of vehicle is that is has more payload, and you can drive it with a EU driving licence B/BE.
Picture added on 07 June 2006
The idea was that any volunteer fire company with limited resources could buy the tractor with its crew cab and a number of different semi-trailers, any one of which could be hooked up based on the nature of the alarm.
Basic firefighter, water relay unit, foam tender, salvage rig, rescue trailer, hazmat response, water tender, command van, water rescue, lighting unit, dry powder truck - you name it!
But I have never heard of any fire service actually buying any of these....
Added by Rob Johnson on 05 March 2018.