Assuming arguendo the technology works and the cost on a new car is nominal relative to the cost of the new car, the cost to repair the system can easily be 10x the cost of providing it on a new car -- technician labor rate vs assembler labor rate to both take it apart and put it back together again -- and braking systems typically require new parts not junkyard/salvage parts. What happens down the road when the car is older and this system needs to be fixed and the car is owned by someone who doesn't have good cash flow? Are they going to bypass the technology to drive the car? If they can't fix it or bypass it, will that lower the used car value meaning the original buyer will have to eat the difference making the car more expensive to own, like the difference between leasing a car that holds its value vs one that doesn't?
