Would that not be the obvious choice - we have ships classified as people transport vessels, and now we finally get non-NPC passengers. I would find it very strange if FDev had actually introduced a new vessel only for this purpose, as it would mean NPC and users are considered different kind of subjects within the ED universe's logic, which would be... wrong ?
I would have placed the Dolphins, Orcas and Belugas as more the luxury coaches, commercial jets and cruise ships of Elite. It seems like for a "taxi" (where there's just one or two of us sitting on the bridge with the pilot, apparently) one of the Skoda Octavias or Ford Mondeos of the game would be appropriate. So an Adder or the like seems about right.
I would like to be able to travel as a passenger on a Saud Krueger ship when ship interiors are a thing though.