There's the button that unlocks the car's doors and the one that pops the trunk. And then, on some BMWs, the key fob has a button with a diamond on it.

In collaboration with the Car Connectivity Consortium, global automotive and device manufacturers and technology companies are advancing Bluetooth Low Energy, Ultra-Wideband, and CCC Digital Key™ ...

Audi has enabled support for Apple's digital car key feature in its latest A6 Avant e-tron model, bringing Apple Car Keys to ...

The P/B ratio shows how a stock's market price compares to its book value. It helps gauge whether a stock is undervalued or overvalued relative to its net assets.