Currently this is not on the Asset Store, but I’m preparing a pack to publish there soon. By the way you may already download the bus 
Hello folks, I am looking for donations to buy assets for my game. In retribution I’ll share some models that I made for myself! So we can help each other, since there is many indie developers out there like me who loves free models.
This bus is one of the first models for free: you may download it and use in any project you want (just remove trademarks and give credits somewhere, in a txt it is ok). Creative Commons CC-BY.
If you like what you see, please make a donation of any amount. Reaching my goal I’ll share my next buses for free. The next one is an articulated Brazilian bus (Mondego HA).
Currently I’m modeling only Brazilian buses, but I’ll make some from US and Europe in the future for my game. If I receive this financial help, I’ll share them too for free I have modeled also the exterior only of a Solaris Urbino model, I’ll publish it for free soon (this is an European bus).
You may check this bus in my game on the Play Store: Proton Bus Simulator (it was designed for PC, but with some optimizations runs also on mobile).
https://play.google.com/store/apps/details?id=com.viamep.protonbussimulator
Please note that this is a prototype, I released it for the fans (it will be stable in some months).
There is a Paypal button on the download page and also I accept Bitcoin. The page is in Portuguese but it is not hard to find the links. I also have shared some 3D street models (it is very hard to find good road pieces for free!). You may download them in the same page.
Information, Paypal button and download:
http://www.explorando.com.br/mep3d/
Direct download link:
http://www.mediafire.com/file/ycrs2tgl282luho/MILLENNIUM_II_PBC_BY_MEP_(CC-BY).rar
Check this bus in action! (jump to see it animated in my Unity game)
For donations, use the Paypal button or email me directly (marquinhosxp@gmail.com - marcos@viamep.com).
If you cannot support me, it is ok! The models that I am releasing are there for free. But only with this kind of support I can give away more models.
All the collected money will be used to speed up my development, buying assets that I need on the Unity Asset Store or other places, and also for hardware upgrades.
I’m also making an AI Traffic System for Unity that will be open source in the future, but it is not ok for release yet. Thread about the AI system: