Funny, there are rarely any disabled spaces available when we need them.
R.E.: Motobility...when my mum first ebcame disabled we couldn't afford to buy a big enough car to fit her wheelchair in etc, so we went with the scheme and got a whopping great Galaxy. This was back in 2001 ish, and the scheme was AWFUL then. Very expensive every month, huge excess mileage, maintenance costs etc. We stuck with it for the shortest term possible before getting out. It was sold very differently to the reality. No smart new cars for my parents any more! Apart from anything else, the cost of the electric lift for her chair (she needs it for going out on her own, her balance isn't good enough to lift heavy weights while leaning etc) is extortionate so that is the priority over the car itself.
So in no way are disabled people given anything bar the badge. And I am almost loathe to say it in case it fires people up even more...some don't have to pay road tax.
Some disabled people do have newer cars because they need the newer technology...automatics, tiptronic gearboxes, large space for lifts or ramps etc etc. So for some people going through the very expensive motobility scheme to get a car suitable for their needs is the only option for the customisations they need.
But of course, if you're disabled you should wear a cardboard sign around your neck and look suitable apologetic for even being there.
Also...there are some wealthy disabled people too!