IF you believe for a second that the government would ring-fence the profits and use it solely for helping the disabled. Personally I would expect any profit to disappear back into other areas, which would probably then result in a push for higher profits to fund other things so we’d end up with worse options, higher prices and generally be worse off.
It is only my opinion, but I think it would be an absolutely terrible idea. In next to no time it would occur to some bean-counter that they don’t really need a whole new department to run it, so it’d be folded into the DWP or something which would then mean if and when you needed to contact them, you would get some general assistant with little specific knowledge of the motability side of things.
"Man is born in freedom, but he soon becomes a slave, in cages of convention, from the cradle, to the grave."