Offizielles OMSI-Forum

Quoted from "Thiago"

I strongly recommend you to start with Blender, even though the learning curve may be somewhat tricky, but there are plenty of tutorials. Exporting and converting models from other 3D applications might be a real headache, since Blender sometimes refuses to understand well 'textures' that come from other 3D editors.

Quoted from "road-hog123"

I would recommend trying to learn how to use Blender, but if you're like me (give up easily, and prefer to learn by self) Sketchup can still be used to make buses. (see my thread about the Leyland Olympian I'm making, you'll see )

I personally use Sketchup for junctions, and (try to) use Blender for Scenery Objects. One minor issue with using it is that each texture is referred to as texture0, texture1, texture2 etc. so if you have many models in the same folder, the textures start to get messed up!
Good Luck!

Quoted from "Thiago"

Blender isn't hard. I had this point of view in the beginning but noticed that actually it isn't (for the purposes of game modelling like OMSI). What makes it looks complex is the fact of having an ugly GUI with lots of functions that are useless to the regular vehicle creation, although the GUI was improved a bit in version 2.6. Sketchup doesn't offer enough tools to edit meshes properly at the level of creating a bus, so I think it's much more time consuming working on a bus using Sketchup than struggling a bit with Blender. It's worth the effort.

Quoted from "road-hog123"

which bus?