At Anonymous Car Manufacturer, we’ve developed an awesome new technology. All of the vehicles we produce can now be opened via a “virtual” car key. This means that car owners can use an app on their phone to create a key, and allow others access to their car via their phones as well. Some of the functionalities include:

- The key can be used for one-time access, for a set period of time, or permanently

- The owner of the car can decide whether the key they send can only open and close the car, or drive the car as well.

Now that we’ve developed this tech, we want to know the best ways to bring it to the cities of the world! What unique business ideas can you think of that take advantage of this functionality in an urban environment?