2wheels and 2 steering wheels extra with 4096×4096 diffuse and normal map texture, uv mapped

1.bus 22,408 tris
2.bus 15,924 tris
3.bus 13,866 tris
4.bus 18,889 tris
5.bus 14,685 tris
6.bus 23,909 tris

Check out the details from the Unity Asset Store: https://assetstore.unity.com/packages/3d/vehicles/bus-pack-68451