Euro Truck Simulator 2 Bus Mod Version 1.15.1 -

However, please note: (released around late 2014 – early 2015). Most modern bus mods require game versions 1.40–1.53.

It looks like you're looking for a for Euro Truck Simulator 2 specifically for version 1.15.1 . euro truck simulator 2 bus mod version 1.15.1