All I know is that you can't get bugger all for Granadas. I'm struggling to get a fuel distributor, a windscreen and a set of bumpers for mine. Honestly, old Euro Fords are worse catered for than old Japanese chod and that isn't well catered for. Let me know what you need and I'll see what I can dig up.
You are very welcome. I realize that these German fire engines are relatively unspectacular looking compared with what some American fire stations are able to display on open doors day, but you have to consider, that the requirements are very different indeed. In Germany, the emphasis is on versatility and maneuverability. In a densely populated country with good infrastructure, big tanks aren't necessary, because there are hydrants everywhere, unless there is a lake/pond/river nearby to deploy the submersible pumps. The vehicles have to be relatively small to be able to be driven on the narrow streets of old towns as well as narrow twisty roads in mountainous or rural areas. The 15/16 ton max mass is due to being able to cross even smaller bridges. And the standardization of the vehicles is not due to a genetic German obsession for it, it has a very practical background. In case of big disasters, like the recent train wreck for example, rescue crews from numerous surrounding stations respond. Due to the standardization, all crews can operate each others apparatus, thus crews can team up to handle the most imminent rescue tasks without facing unfamiliar equipment.
The '68 also had a more pointed grille and divided taillights. The front running lights (on non-RS models) were also changed from circular to oval. With the Astro Ventilation that allowed the omission of the vent windows came a revised dashboard containing - well - air vents. The seat pattern was also changed.
Don't paint the black parts that are supposed to be rubber or plastic on the real thing. The frame and headlight bowl, which are metal painted black on the real thing, need to be painted on the model, too.