Trump's tariffs may cost carmakers at least 1 million annual sales Trump's tariffs may cost carmakers at least 1 million annual sales June 12, 2018 dzadmin Comments 0 Comment If President Donald Trump slaps a 25 percent tariff on imported vehicles, it may cost the U.S. auto industry 1 million annual vehicle sales — and that’s just the low end of the estimated damage, says LMC Automotive.