The absence of a rear window was a design feature first unveiled in the Precept concept car, and it is now implemented in the Polestar 4.
The rear-view mirror has been replaced by a high-definition screen that displays a live camera feed from the car's roof. This system gives the driver an expansive rearward view, with no headrests or passengers in the way – a key advantage over conventional mirrors. This screen can also be switched to a traditional mirror mode if the driver wants to check on the rear occupants. While it might require a bit of adjustment, drivers find it quickly becomes second nature to use.
By eliminating the rear window, we were also able to extend the rear header and expand the panoramic glass roof behind the rear passengers. This creates an incredibly spacious and bright interior environment, enhancing headroom and overall comfort.