GM, Ford and Chrysler owner Stellantis will be among the carmakers hit hardest by Donald Trump’s pledge to impose tariffs on imports from Mexico and Canada, according to analysts. The threat to America’s three biggest carmakers stems from the complex, cross-border supply chains the global auto industry has developed over the past four decades.
The figures from the regulator also show that for 42 of the models, parts from Mexico accounted for more than 15 per cent of the total value of the components in the vehicles. Customs declarations from Mexico show the range of parts the country provides to the US market. About 35,000 declarations covering $700mn of car part shipments were made in the final week of August, the most recent period for which data is available.