Toyota invented a box that turns your smartphone into a car key

Toyota is jumping into the increasingly crowded car-sharing market, and it’s doing it with a flair for innovation that helps explain why it’s the world’s biggest auto seller. The company invented a Bluetooth-enabled device called the Smart Key Box that allows users to unlock and start the engine of a car using just their smartphone.Here’s how it will work: a vehicle owner who wants to make some money on the side lending their car to other people can install the Smart Key