ftr, i'm disabled, like, physically disabled, i am entitled to a Motability car should i choose to, i currently don't, my own car suffices for now... but you know something? I just had to SELL my 'basic Ford Focus' and replace it with this one because i can no longer drive my Focus because of my disability... the steering on them is too heavy and the driving position aggravates my spine and hip, its also too hard to get in/out of now.
So your suggestion is fucking stupid. You cannot have one car for all, it doesn't work, everyones disability needs and requirements are different, and different vehicles are needed to suit need.