With transfer seats available from The Braun Corporation and Bruno Independent Living Aids there are options when transferring a person into a vehicle.

Using the original vehicle seat, the unique power base extends out the door 20 inches and tilts forward 6 inches to make boarding safe and easy. Braunlift.com

The Bruno Turny Line is ideal if you have difficulty entering and exiting today's minivans, pickup trucks and full-size vans. Bruno.com