8-way power seats are definitely the say to go, as VDCdriver mentioned. These will probably be the top-of-the-line trim, but definitely worth it. Do you also need something you just slide into, or can you sid down and stand without problem? If squatting to get in is not a problem, cars are on the list. Otherwise you need a truck. Small SUVs allow you to slide straight into the seat. We have friends with degenerative back problems and arthritic knees. Both of them found the Honda CR-V to be a comfortable ride. Their problems are different, but their experience might help you. Other small SUVs are the Chevy Equinox, Toyota Rav4, Nissan Rogue, and Ford Edge, to name a few.