The U.S. government said Wednesday that it will impose 25% tariffs on automobile imports on April 3 and a similar duty on auto parts a month later, as President Donald Trump prepared to announce further trade barriers that could escalate a trade war and upend the global economy.

While auto manufacturer stocks fell following Trump’s tariff move, shares of auto parts retailers like Raleigh-based Advance Auto Parts saw a boost last week as investors predicted more drivers may invest in maintaining their current vehicles longer rather than purchase more expensive new cars.