This is a good point. Thanks for bringing it up.

But I think you miss the gist of my statement. My apologies. I should have been clearer. I said "...anybody else with access to the box can tell exactly how you've been driving..."

The issue here is that the car is automatically equipped to provide such tracking. Whether the tracking is turned on by default, by court order, by the police hacking your system, by the company in order to verify test drives, by your insurance company convincing you to give them the data -- all good and interesting situations for discussion, but not germane to what I was saying.

In fact, it's not the company I worry about. It's consumers who will easily be lured into turning on tracking by their insurance companies -- and then this data will be available to anybody who has system access. We are our own worst enemies.

Your car -- a large, heavy, physical piece of reality which you trust to get you from point A to point B -- is now only so much software. That's a big deal.

All cars will soon require blackboxes [1]. I agree it's a big deal and it will be interesting to see how good security / how accessible these are.

[1] http://www.wired.com/threatlevel/2012/12/black-boxes-privacy...