It's all taxes and taxes and taxes. Bloomberg.com followed up the president's claim on Wednesday with an analysis that the coupe's sticker price in China is half that. At the same time, the US auto industry was slumping, and Japanese cars were making major inroads into the US market. In addressing foreign duties on US cars, Trump has floated a tariff of 25 percent on imported autos, prompting protests from General Motors. That's because GM's Buick division manufactures its Envision crossover SUV in China and sells it both there and in the US.