After coming across these pics on one of the forums I decided it would be a good idea to get a fire extinguisher installed in my Pajero LWB (CK 2000 – 3.2 DID).
So this is what I came up with – installing in just inside the rear window. I simply removed the rear plastic trim and using some large self tappers and some spacers to keep the plastic trim from being squashed, fixed the bracket to the car. Here is the finished product: