Create a single detailed 3D model o...

Create a single detailed 3D model of an ancient mysterious sky train, designed as one standalone object. The train should look like the last surviving vehicle from a lost aerial railway civilization, a sacred and unsettling machine that once traveled on rails through the clouds. Do not add a station, city, people, landscape, buildings, platforms, or background scenery. Focus only on the train itself. The train should be long, elegant, heavy, and slightly impossible, combining old railway design with ancient anti-gravity technology. Its silhouette should be recognizable as a train, but not a normal modern train. It should have a powerful front engine car, several connected passenger cars, and a final rear observation car. The whole train should feel like it could glide upward into the sky