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Business

For Carmakers, Auto Shows Are No Longer Can’t-Miss Events

The stand for VinFast, which is to be the first car built in Vietnam, at the Paris Motor Show, Oct. 3, 2018. What used to be obligatory attendance at big-time shows, to attract thousands of media types in one place at one time, is now past. (Dmitry Kostyukov/The New York Times)