Porsche Taycan users in the US can now access Apple Maps' EV routing feature via CarPlay instead of having to exit CarPlay altogether and use Apple Maps on their phones. Of course, Porsche's infotainment system also offers that, but a lot of users are already using CarPlay, so it makes sense to offer both EV routing features simultaneously.
The EV routing functionality does more than just plan your route and navigate you to the appropriate charging stations. Apple Maps will also give you charging time estimations, energy usage details, taking into account elevation, real-time traffic information and other variables that may impact your driving range and charging station planning.
It's important to note that the Taycan's built-in EV routing has the same feature set, so the CarPlay update is merely catering to users that rely heavily on Apple's ecosystem.