Hey, thanks to everyone for the really great ideas, and for the measurements. I really, really appreciate it. 
Almost all the cars at auto shows have power seats and no keys in them which is why I stopped going to auto shows.
I am 5’7” with back and knee problems. It never occurred to me how much pain and difficulty I was experiencing when entering and exiting the vehicle until I bought my Kia Soul. It is the perfect height from the ground. I don’t have to pull myself out or jump into it. I just sit like a nice tall chair. It is not an overly expensive vehicle and is pretty practical. The suspension is loose like a truck and I’ve thought of looking into a less “bouncy” vehicle in the future but only if it is similar in height to my soul.