I've always been a bit unsure about the thinking behind Playmobil's idea of the G-Wagen fire car 3181 (
http://www.collectobil.com/catalogue/items/3181.htm) and the fire trailer 3178 (
http://www.collectobil.com/catalogue/items/3178.htm). Certainly, the 3181 could carry a crew of four (the minimum for firefighting) and some equipment and tow the trailer, but it is over scale and if the RC unit is used it can only carry a crew of two. The trailer is a nice bit of design (I've seen it favourably commented on by German firefighters on the web), but it comes equipped neither for firefighting nor rescue. Despite these shortcomings, I've ended up over the years with three trailers and two of the 3181s(!), and here's a first custom on one of the trailers, a minor incidents unit or, if you like, a small fires unit.
In some areas, the pattern of fires is such that either all the time or part of the time a full size fire engine and crew are not necessary to provide adequate fire cover. For example, on a Friday and Saturday night in the commercial district of Copt Hewick Volunteer Fire Brigade's patch fires tend to be nuisance ones - litter bins, trees, park benches, and so the plan is to have first attendance for these as a 3181 and the minor incidents unit. Of the other two trailers, one will be converted to a rescue function and one to an environmental/salvage function. But here is the first, the minor incidents/small fires unit.
The first photo shows the original interior of the trailer, with the second and third showing the changes made by introducing partitioning into compartments on the right side and by fitting a slide out tray for a portable pump and a fire extinguisher rack on the left side.