what's the technical word for area between cars?

Good afternoon everyone,

Does anyone know the technical term for the area between cars? I’m thinking about the Eurail train in Europe, and in this area between cars you have the restrooms as well as the exit/entrance.

Anyone?

Trainjumper

If you are referring to the area where people get on and off at the end of the car,this is called the vestibule.

Excellent, Thanks for the help espeefoamer

Trainjumper