Well then, what if the next BMW key weren't a KEY at all? What if it was in the shape of a credit card that you could keep in your wallet and it would talk to the car remotely...??

But in all seriousness. There was probably once a time when you didn't have your cell phone by you at all times.

I'd also be surprised if the key with the info were optional rather than necessary, to have all the information included.

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"When two people agree on everything, one of them is not necessary" - Arliss