Amtrak's Superliner is a two-story train fleet that runs on routes west of Chicago and New Orleans, including the California Zephyr. The cars are roughly 30 to 50 years old, and Amtrak plans to ...

I spent 15 hours in a sleeper car on an Amtrak Superliner train going from Denver to Salt Lake City. For $400, I stayed in a private cabin, which had two seats during the day and two bunks at night.