Tariff Threats Spark Rush for New Cars as Price Hikes Loom With U.S. tariffs on non-domestic vehicles set to take effect, car buyers are hurrying to dealerships. Although average new car prices have held at $49,000, analysts warn costs could jump $3,000 to $10,000 if tariffs are implemented. Dealers currently offer stable prices on in-stock models, but increases are expected soon.12