This is actually false, frame is less robust design as far as car crashes go. The only reason it might do better in a crash is because frame of a truck would sit higher than bumper of a passenger car, and truck would have more mass. Take two comparable cars, one with a frame and another with unibody and crash them into eachother - people in the frame-design car design would likely horribly die while unibody would walk away with minor bruises. Crumple zones, force dissipation into entire unibody, and rigid cage are just THAT GOOD at protecting passengers.

I have a better idea, why not get a customized plate with your SSN? At least doing so has no potential of killing you in a high-speed crash.

Your OBD II port has direct access to CANBUS, as such plugging anything with wireless connectivity puts a huge "remotely mess with my car" sign on it. Throw in Bluetooth and possibly unpatched Android into the mix and you are inviting every script kiddie out there to turn your car into a video game.

Dear humanity, welcome to the Information Age. Why do we call it Information age? Because we developed technologies that allow us to retain significant portion of all information and knowledge produced, from mundane to crucial. As such, your right to forget should not, cannot trump our right to remember.

Not a problem, they just keep crashing runaway Piruses into your pickup truck. Sure, it may take more than one.

Pre-negotiated shared key is very hard to do right, due to the need to perform secure key injection AND trust unverified third parties (e.g. independent mechanics). You also have to worry about have non-static configuration (e.g. what happens when your independent mechanic changes a sensor, how do you authenticate it?).

About the only implementation I can think of is to have car run its own Trust Authority, with owner and not manufacturer (yeah, right) controlling it. This way adding new sensor will be a question of typing in the owner's password. Unfortunately, most people will leave everything default and not care about security implications, leaving such security measures largely ineffective. So we are back to "air gap it" solution.

I don't think it is possible, most of 'mission-critical' systems have to be real-time where response measured in milliseconds. There isn't enough time to preform any kind of authenticity or non-repudiation checks. What possible is properly isolating internal CANbus.

Poster above is absolutely correct, I have my butler tape monocles and glasses of chardonnay to my S-class steering wheel.

This is optimization error in the compiler of our simulated universe.

Could someone explain this to me with a car analogy?

I understand that above suggestion to "saw their heads off" was likely made in jest, but there is grain of truth to it.

We live in an era where people in charge have very little accountability to the masses. "The Mob" no longer puts fear into politicians or business community. As such "maybe I shouldn't do this nefarious yet legal deed because it could end up with guillotine" check is no longer there.