Why do they give two keys with every rental car?

Sure but the quote from Marketplace adds an answer straight from a Hertz spokesperson.

sometimes the truth Hertz.

Sorry, refuse to believe that. Store each one according to the VIN number, when it is time to sell, pull the file folder with that VIN number, retrieve the second key, title and maintenance paperwork and Bob’s your uncle.

Asshats, corporations seem to be able to track parts by number, people by SS number, all sorts of information in file folders organized by number, by letter and by combination. They simply do not want to make the effort to, and take up the space of storing keys and paperwork in file folders in file drawers somewhere at Corp HQ.

Hertz does not seem to be very consistent about keys. Last weekend I rented a car and only received 1 key.

I doubt that the title exists on paper until the car is sold or that the maintenance records are stored on paper.

Another data point: an Avis rental in St. Louis 3 weeks ago. Two bulky keys on a sealed cable ring.

I didn’t bring my wire cutters on this trip so I had to deal with it for the whole week. ARRRG!!

Except for the fact that on some cars with proximity keys ( the kind you leave in you pocket and push a button to start) you must have any remaining active keys at the point of programming a new key or they are removed from the system and cannot be put back in. Period.
So if you stored the second proximity and the customer loses the first key you now have a very nice small paperweight.

Let’s just hope that eventually the technology allows them to make a “key” that’s no bigger than an actual key used to be.

FYI, I was given a rental car from Hertz today as a loaner from the BMW dealership. Two keys, just as expected.

This is the answer:

http://en.wikipedia.org/wiki/Two-man_rule