The proposed tariffs by the Trump administration could significantly impact the U.S. car market, affecting both new and used vehicle prices.

U.S. stock index futures tumbled on Monday as investors avoided risky assets on fears that the Trump administration's sweeping tariff plans set to be unveiled this week will hurt the global economy.

Local communities like San Antonio are starting to feel the economic fallout from President Trump's trade policy. Why it matters: San Antonio is home to manufacturing that ranges from automotive to aerospace — key industries and employers that stand to be impacted by tariffs.