Is there any sort of exclusive equipment in the Genesis Starliner that couldn't be installed in a different ship? Or can a variety of ships be fitted to fill a "starliner" role?

We intend for many ships to serve a "starliner" role if so desired; we will pursue this by making extra seats on existing spacecraft available for NPC travel. Passengers will likely be more interested in boarding a dedicated transport like the Starliner or a luxury ship like the 890 Jump than they would buy a ticket on the jump seat of a Freelancer... but we expect there'll always be people to move around the galaxy!