Sources: Apple is developing an iPhone-based car control system that could access climate control, speedometer, radio, seats, and more, expanding on CarPlay (Mark Gurman/Bloomberg)

Mark Gurman / Bloomberg:
Sources: Apple is developing an iPhone-based car control system that could access climate control, speedometer, radio, seats, and more, expanding on CarPlay  —  - Company looks to build on success of CarPlay, launched in 2014  — Initiative, known as ‘IronHeart,’ is still in the early stages