is it recolorable??

I don't have any knowledge how to import models to TF2. Even so, this model is type 3 lod, when in tf2 vehicles usually have interior. On top of that in TF2 some meshes are "bend-able" some aren't, glasses had to be propably separate from the base model and for LOD3 my tram is still lacking on details that are much more visible in tf2 than in c:s. So my answer is no.

Could you add this tram to Transport fever 2? Because there are no Polish trams there and you are doing a great job

nice