*Tesla Can Detect Aftermarket Hacks Designed to Defeat EV Performance Paywalls.*

In general, it is the car owner's right to make changes in the car, and manufacturers should not be allowed to implement measures to interfere. Devices, including cars, should not require subscriptions and should not record where the car goes.

But there is an exception: measures to reduce pollution. These are vital for public health — air pollution causes a lot of sickness and death — and "defeat devices" installed by car owners are just as dangerous as defeat devices installed by manufacturers.

My solution would be to put those systems into separate computers whose software cannot be changed by any digital activity. If the manufacturer can't change it, it is ok that the owner can't.