Apple's in-car operating system, CarPlay, is about to get a major boost. The company has announced at WWDC 2015 that it will soon let you control additional parts of your vehicle, directly from the iPhone-powered software. This means CarPlay can work together with apps created by manufacturers, making it easier for them to integrate their auto features with the service. As a result, you should expect to see other useful tools in CarPlay mode -- like monitoring fuel efficiency and more, similar to what's on the Watch. On stage, Apple CEO Tim Cook also highlighted CarPlay's ability to pair with infotainments wirelessly, which was introduced in iOS 8.3.