Don’t think I have any must haves but a few preverables such as- Auto lights and windscreen wipers. Heated seats. Dab radio. Heated front windscreen I use the auto boot opening thing but only because I haven’t looked at how to do it manually. Don’t use parking sensors or cameras, although they are there if I ever need them. Sat nav on my phone is better so mostly use that. Lane assist is switched off. I would certainly support a “motability special” type car where every car has a minimum of what most on the scheme need, (its impossible to cover every need in a car for so many).
plus of course “heated rear window!.