I found an interesting article about security at AskTog.com. Here's an exerpt:
Fifteen years ago, the approved method for gaining possession of a vehicle other than your own was to wait for the owner to wander off, then jimmy the door and hammer a screwdriver into the ignition. Bowing to auto-insurance industry pressure, auto makers have removed that option in many high-end cars, which are no longer practical to steal.
This has made the insurance companies very happy, but, unfortunately, it is getting a lot of their clients killed, since high-end cars are no longer being taken when the owners are away, but when the owners are there, car keys in hand.Interesting, no? Read the full article here.