A number of cars these days are actually removing the ignition key entirely. Just look up the cars with "push button start" Most of them no longer have key's but instead the keyfob that opens the doors also acts as a signal that it's ok to start the car. It's one big reason that I don't want to buy any car that doesn't require a key. I know they're easy to duplicate, but i don't believe them when they say that the fobs are hard to duplicate.