After pioneering the passenger screen, Mercedes has designs on the windshield.

Because Mercedes installed its test system in a right-hand drive car, this is actually the passenger's view.

Credit:

Mercedes-Benz

Because Mercedes installed its test system in a right-hand drive car, this is actually the passenger's view.

Credit:

Mercedes-Benz

Do screens in cars represent luxury? Judging by the latest car interiors, the answer would seem to be an emphatic “yes.” Screens aren’t just getting larger; they are multiplying across the dashboard and morphing into different forms and concepts. Indeed, an interior’s screens are a pretty good indicator of what brand made the car—or at least how much the owner paid for it.

But is this actually what customers want ? Are more screens really better? And even if they are, luxury car features inevitably trickle down to cheaper, more mainstream offerings, and screens can only get so big.…