That's the "Bus Maxis" by pitipet over at the Daz 3D store. Petipet did nice mesh work on this. All I had to do was to change the materials on the seats and the markings to make it work in the render. The doors were already rigged. The scale was for my purposes a little bit too small but that was easily fixed by simply scaling the whole model in the scene. Very easy to do.

Hellz ya. I got that Maxis. I used it here:

https://www.renderhub.com/gallery/82533/oksana-sez

Ya. It is small. Perhaps it was originally scaled for use in Poser.

Birdman made a free version of it that used to be available on ShareCG.

https://www.deviantart.com/birdman99/art/Dymaxion2F-449322213

But what is the word before "Martini Transit"?

Key. The girls live on Key Martini. It's a made up island paradise that I use in some renders.

And the main way to get to and from Key Martini is...

https://www.renderhub.com/gallery/50491/long-restoration-project