That’s a fair point regarding Scotland. Though some sort of smaller scale ‘favourable Leasing arrangement’ would not be beyond possibility, surely. Maybe getting a vehicle from a regular Leasing Service but with the Government covering Insurance costs? That sort of thing.
Assuming Scotland can afford to continue with PIP/DLA type benefits, of course. Or England, Wales and Northern Ireland either, come to that.
As with everything Brexit-related, the Magic Eight Ball just says “Ask again later”.