IF you order a new top-of-the-line sedan in Europe or North America these days, you might find there is a long waiting time unless it’s a less popular model. The sudden car shortage has nothing to do with the spread of the South African or Brazilian strain of the coronavirus. The reason why automakers are not making enough cars and some plants of General Motors, Daimler, Ford, Toyota and Nissan are now idle is an acute shortage of semiconductors, which power functions from brakes to emission controls. “Electrification of vehicles is increasing the content of power chips 10-fold in every c...