Introduce a night mode option that minimizes interior lights for dark night driving. Night mode should completely turn off the 17-inch center screen and remove all unnecessary information from the speedometer display. Only speed should be visible preferably as a gray number with no graphics. When the remaining range is below a (user selectable) threshold, the range should be displayed too. Navigation guiding can be displayed in a minimalistic way when navigation is activated.
This helps preserve night vision and increases comfort when driving in completely dark surroundings.
Saab used to have this feature. Can be implemented in software.
There are several options now available to accomplish this. First, the nighttime brightness can be set to 0% (very dark). The main screen can be set to cleaning mode, which is totally black. The left and right side panels on the S/X instrument cluster can be set to black as well (no display).