There has been the occasional rumor of a Model S/X interior refresh, and some think they will go to a single landscape screen like the Model 3. I think this would be a huge mistake. The current dual screens with portrait layout works really well and provides far more screen real estate that you could get with a single screen. Furthermore, I'm not sure you could actually reasonably fit a 17" or larger screen in landscape in the center of the car. Your available space for controls is mostly vertical, and it makes sense to keep a portrait layout for larger screens in the car.
I'm sure you've seen this debate before, but I want to give one concrete example of the superiority of the current Model S screen layout that I have strongly noticed when switching back and forth between my Model 3 and my Model S. The navigation. The Model 3 navigation is fine, better than most cars, but not nearly as good as it is in the Model S. If you compare the physical size of the map display, it is much larger in the S due to the larger screen and the basic car info displays being separated onto the 2nd screen. More importantly, and probably overlooked by a lot of people, is the 2nd nav display you can get on the instrument cluster screen in the S. How is that useful? It is MUCH easier to use that 2nd screen to understand exactly where you need to turn when navigating unfamiliar territory while using the 1st screen as more of the overview of the larger route. The instrument cluster nav screen zooms in further automatically and provides more useful visualization angles for intersections and turns. I've had a harder time with this in the 3, having to zoom in and out far more often. In the S, the 2 nav displays I find are actually extremely useful together. I hope they keep it that way.
Plus the dual screens is more upscale, something they need to maintain if they want to keep selling Model S for twice the price of a 3.
I'm sure you've seen this debate before, but I want to give one concrete example of the superiority of the current Model S screen layout that I have strongly noticed when switching back and forth between my Model 3 and my Model S. The navigation. The Model 3 navigation is fine, better than most cars, but not nearly as good as it is in the Model S. If you compare the physical size of the map display, it is much larger in the S due to the larger screen and the basic car info displays being separated onto the 2nd screen. More importantly, and probably overlooked by a lot of people, is the 2nd nav display you can get on the instrument cluster screen in the S. How is that useful? It is MUCH easier to use that 2nd screen to understand exactly where you need to turn when navigating unfamiliar territory while using the 1st screen as more of the overview of the larger route. The instrument cluster nav screen zooms in further automatically and provides more useful visualization angles for intersections and turns. I've had a harder time with this in the 3, having to zoom in and out far more often. In the S, the 2 nav displays I find are actually extremely useful together. I hope they keep it that way.
Plus the dual screens is more upscale, something they need to maintain if they want to keep selling Model S for twice the price of a 3.