Dennis Dragon Bus (Polygon mesh 3D model) is available on CGTrader for $30. Original author: businessyuen. Specs: 463163 polys, 4636686 verts.
BLEND (Blender, filesize: 66 MB), OBJ (OBJ, filesize: 66 MB), FBX (Autodesk FBX, filesize: 87.3 MB), GLTF (glTF, filesize: 33.1 MB), UNITYPACKAGE (Unity 3D, filesize: 66 MB)