https://wccftech.com/ios-13-4-beta-adds-new-carkey-feature-allowing-users-to-unlock-lock-and-drive-compatible-vehicles/

Apple has seen fit to release the first beta of its upcoming iOS 13.4 firmware to developers for testing purposes. If you're a developer and enrolled in Apple's beta testing program, you can download and install the first beta for yourself through the Apple Developer Center. As of now, iOS 13.4 does not bring quite a lot to the table but one interesting bit to focus on is 'CarKey'.

Apple's new CarKey API will allow users to use the iPhone as well as Apple Watch as a key for their car. users running iOS 13.4 will be able to unlock, lock and start it as well. The feature will be available in cars that have NFC compatibility.