Car keys could go the way of tail fins

Car keys could go the way of tail fins
Are we about to lose our car keys for good? Around the floor of the New York International Auto Show, which runs through tomorrow, doors swing open to reveal push-button starters--no key necessary. They can be found on about 55 cars and trucks, including luxury models from Audi, BMW and Mercedes, and on Nissan's inexpensive Versa...

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