Software blocks, where the hardware for the feature is included but the software won’t allow it to be turned on unless more $$$ are paid, that’s fairly common in high tech gadgetry. There might be two printers by the same manufacturer, one for $100, one for $300, different model numbers, different outside plastics, but the insides identical. Software configuration code is the only thing that prevents the $300 features from being used.
Some marketing sense to that, can introduce the same printer into two markets, and not worry the $100 version will take away from the $300 sales.
There an important ethical question though: what if the feature that is turned off by the software code affects safety? If somebody gets injured, they may claim the safety feature was installed on the car, and manufacture caused the injury b/c they failed to turn the safety feature on.