On a sales basis, German automaker Volkswagen is the most exposed to tariff risk, followed by Nissan Motor and Stellantis, S&P Mobility reports.

Manufacturers from Asia, Europe and elsewhere have poured billions into North American supply chains that could be hit by new taxes on Mexico, Canada and China.

US President Donald Trump has said he will follow through with his threat to hit imports from Canada and Mexico with 25% border taxes, known as tariffs, on 1 February. But he added that a decision about whether this would include oil from those countries has not yet been made.

Canada's dollar and Mexico's peso were edging higher on Friday, having dropped Thursday after President Donald Trump signaled he planned to impose tariffs on imports from the two countries. Trump told reporters he would follow through with a plan to impose levies on goods from the U.

Trump has threatened still more tariffs, proposing 25% on goods from Mexico and Canada, an additional 10% on China and 25% on Colombia after that country initially refused deportation flights from the U.