Sliding door (car)

It is a feature predominantly found in minibuses, buses, minivans and vans, so as to allow a large unobstructed access to the interior for loading and unloading of passengers or cargo without the doors interfering with adjacent space.

Pocket doors are used in some delivery vans,[3] as well as, for example, the Renault Estafette and Morris J4, and train carriages, such as the London Underground 1973 Stock, but rarely in cars.

The 1954 Kaiser Darrin had a unique setup pocket doors that would slide into the front fender.

This arrangement makes a very good airtight and soundproof seal and is commonly found on coaches.

High-speed trains use sliding plug doors[citation needed] because they can be made airtight, soundproof and reduce aerodynamic drag.

This allows the exterior to remain clean in design and yet the door can slide outside past the trailing edge of the car.

[5] The Lincoln Mark VIII concept car's doors slide into the frame underbody and disappear from view.

This was designed because Lincoln executives were concerned about the large, heavy doors on the Mark VIII and wanted to improve them, especially for cities with tight parking spaces.

[7][8][9][10][11] Joalto Design Inc. built this one-of-a-kind concept car and shipped it to Lincoln for executive approval for production.