Maybe they make money on training mechanics or something. If you've ever had to take the engine mounts off to change a belt tensioner (ponitac sunfire), you'll ask yourself the same question. Why did they make this purposefully difficult? There's got to be a reason. Somehow, some way they are making money on it. Even if it just jacks up the cost of fixing cars so you have to buy a new one sooner.
Having never driven a rental car, I can't agree/disagree, but I do know that truckers have a disc of some sorts, so cops and the truckers' employers can see if all rules were obeyed.
But those systems can be easily bypassed, my brother in law simply places a magnet on the box, appearantly it stops all input data of the engine/mileage/etc, as if the truck was parked somewhere.
nice. I'll ask a friend who works at enterprise if they use tracking data. I know they don't use it for speeding, because he rented the van we took down to florida, from his own branch, and he went 90 most of the way.
I'm sure that if we were in an accident, they'd use the black box. Plus I know insurance companies always want to put this little recorder on to "prove" you're a good driver. I don't know how long it stays there (like do you send it back or is it wireless and stays forever), because there's no way in hell I'd ever agree to that.