IOS 13.4 beta 1 introduces a new CarKey feature that allows you to open and start cars using your iPhone with NFC.
In the second beta, this option was slightly expanded. If earlier the virtual key could be shared only through Wallet, now iMessage has been added to the list.
Here is the message the user will receive:
[Car owner] invited you to use [car model]. This allows you to use your iPhone or Apple Watch to open / close the machine, start the engine or control.
That is, you can now transfer the control of the car in a personal message. In group chats, this feature is disabled due to security measures. The key may be temporary or permanent. [ MacRumors ]