Apple chief executive Tim Cook told London's Telegraph that the new Apple Watch will eventually replace electronic car keys and fobs. You would just walk up to your car and your Apple Watch would be able to unlock the doors.
According to Cook, the device's battery will last all day and require less charging time than an iPhone.
Will it work with future Apple cars only or with any number of vehicles through partnerships with other automakers? We don't know right now.
As previously reported, Apple is planning to build electric cars by 2020, although some people believe these rumours actually point to an expansion of CarPlay, with a new mandate to completely replace existing in-vehicle infotainment and telematics systems.