What about a cheaper Motability car where you get to keep some of your benefit. This could help with taxi costs on days you don’t want to drive. If you chose the electric Dacia Spring you would get cheap running costs (provided you can charge at home) and you would get £15.75 a week back. It’s automatic, I don’t know if you have an automatic but they do make driving a little easier which could help you.
Enyaq EV