In practice, if you buy the car hypothetically containing heating seats but the feature is disabled, then the hypothetical company (that is probably Tesla) will

In practice, if you buy the car hypothetically containing heating seats but the feature is disabled, then the hypothetical company (that is probably Tesla) will void your warranty and refuse repairs. Which is a great argument for Right to Repair, but makes everything a hassle on the consumer side - any future interaction with the company around the vehicle is a landmmine waiting to be triggered.