The new U.K.-U.S. trade agreement, now in effect, reduces tariffs on British vehicle and aerospace exports, aiming to boost the industries' competitiveness. A 10% tariff applies to the first 100,000 British cars imported annually into the U.S., with higher rates beyond that. The deal also removes duties on aerospace products, though steel tariffs remain unresolved. Industry leaders see the agreement as vital for jobs, growth, and maintaining strong transatlantic trade relations.