Trump warned BMW the United States would impose a border tax of 35 percent on cars the company plans to build at a new plant in Mexico and export to the U.S. market.

Trump was speaking in an interview with German newspaper Bild, which on Sunday released excerpts of his comments translated into German.

A BMW spokeswoman said a BMW Group plant in San Luis Potosi would build the BMW 3 Series starting from 2019, with the output intended for the world market. The plant in Mexico would be an addition to existing 3 Series production facilities in Germany and China.

According to Bild, Trump said the German automaker should build its new car factory in the United States because this would be “much better” for the company.

He went on to say Germany was a great car producer.

Trump brought out the argument of Germans not buying Chevrolets at the same rate as buying BMWs, which, according to the President-Elect, it’s an unfair one-way street. Allegedly Trump said he’s all pro fair-trade, but not at any cost.

A BMW spokeswoman said the company was “very much at home in the U.S.,” employing directly and indirectly nearly 70,000 people in the country.