A demonstration of the Mercedes E-Class digital key feature, showing how a smartphone can be used to unlock and start the ...

Gemalto’s Trusted Services Hub is letting Mercedes drivers use mobile phones to control cars via new NFC vehicle keys. Carmaker Daimler AG’s new smartphone-based digital vehicle key will work with the ...

Cars have had smart keys for quite a while now, and they have almost entirely phased out regular keys. What are smart keys, actually? How do they work?