Very large asset file size

[isrRedLabel]

I have been working on a new vehicle (a minibus) for a few days now.
I recently finished it and shared it on steam workshop:
http://steamcommunity.com/sharedfiles/filedetails/?id=702397036

The problem is, the file size is over 25 Mb!

The source files I used, two fbx files- full model (48.9 Kb) and lod (14.5 Kb), plus 5 png texture files, are 311 Kb.
I tried uploading the model without textures and it's still over 23 Mb.

I used blender to make the model. Tris count is 1294, so not a very complex model.

What could be the problem?

 

[Avanya]

We did some testing and it seems there's something up when importing vehicles using the default bus as a template. The file sizes end up around 25 MB for no apparent reason. Importing the exact same files as another vehicle gives a much more reasonable file size. @TheLetterZ can you make sure the right people get this info? Definately seems like something isn't like it should be (and used to be).