Cadillac Ambulance Wagon Superior 1959 Blender 2.82 modeling, substance painter shading (metalic- roughness), keyshot renderings, you can change any body color from base color in the Principal BFDS material , polys:349204, vertx:371331, all faces positive orientation, 

vehicle modeled as close as possible to reality, all meshes are modeled in low polygon with the subdivision modifier applied but not collapsed, all meshes are mapped and painted, clean geometry, without ngons.