My optimistic prediction is that there will be regulation around this pretty soon. Were going to have laws similar to smog standards that specify what can and can't a car manufacturer can charge a subscription for. I would imagine legislation would look something like.

> You may offer subscription features, but you must also give the option of a one time purchase that unlocks the feature forever.

or

> You are allowed to charge subscription for features A, B and C. But critical features including X, Y and Z must be provided standard on a vehicle at no extra charge.