Installing killswitches in our engines is a fucking stupid idea. Isn't the stereotype criminal hell-bent on pimping his automobiles? It will be a cakewalk for a determined criminal to install an older engine. Unless laws are put into place (and likely even then) engines without computers will always be available, and in the end only criminals and enthusiasts will have ungelded engines. Perhaps the effort will affect a few desperate black carjackers, but not a determined criminal.

Only bad can come of this. You can see the real motivation for this push by the fact that terroristm is used as a justification. But although bullshit like this is technologically possible, it's users and politicians (and in the end "the people") who determine whether technological features like these will become a curiosity or a straitjacket. Oppression stems from politics, not technology.

In the worst case we will have the problem of DRM all over again: A lot of average people screwed over, while people like us are able to steer clear.