Shortly after Apple seeded iOS 7 Beta 3 to developers earlier today, user Hamza Sood (via 9to5Mac) discovered toggles in the beta's "Accessory Developer" settings that allow for iOS 7's "iOS in the Car" initiative to work over Wi-Fi in addition to USB.
iOS in the Car is an initiative Apple revealed at its Worldwide Developers Conference keynote that provides enhanced iOS integration in automobiles, displaying iOS on in-car monitors to make calls, get messages, look at maps and more.
While it was largely assumed that iOS in the Car would work over a wired USB-to-30-pin or USB-to-Lightning connection, it now appears that iOS in the Car may be available at great convenience with users not having to take their devices out of their pockets or bags to instantly connect to their automobiles, which would have to be outfitted with AirPlay or Wi-Fi to take advantage of the feature.
Major car manufacturers that plan to support iOS in the Car include Honda, Acura, Mercedes-Benz, Nissan, Infiniti, Ferrari, Chevrolet, Hyundai, Kia, Volvo, Opel and Jaguar. The feature is expected to roll out in 2014 following the launch of iOS 7 this fall.