Asian companies lead a reversal from car dashboards dominated by touchscreens, says the Financial Times’ June Yoon. SEOUL: You are driving down the highway when, without warning, traffic comes to a sudden stop as you enter a tunnel. You reach for your hazard lights, but they are not where you expect. Instead of a button, they are buried in a menu on your car’s touchscreen. You tap the screen, but it freezes. Now what? Since the mid-2010s, many automakers have embraced a buttonless future,