@RedVelocity, yes, you can resize the texture and adjust the UV inside the model. I didn't that way because in the original D3S model a full texture of a 15m bus did not fit the resolution of the base png and when I modified this vehicle I was new at modeling and blender.

Hey, I'm trying to add custom livery to this(personal use) but seems like the middle part gets stretched/clipped/repeated near the door. Can this be fixed?

Great bus!