BUS 1 Low-poly 3D model is available on CGTrader for $2. Original author: Damor3D. Specs: 10526 polys, 12523 verts.
LWO (Lightwave, filesize: 527 KB), OBJ (OBJ, filesize: 1.98 MB), FBX (Autodesk FBX, filesize: 460 KB), TEXTURES (Textures, filesize: 68.8 KB), 3DS (3D Studio, filesize: 422 KB)