The EU has reverted to offering the US tit-for-tat tariff reductions on cars, with negotiators abandoning the idea of a complex “netting mechanism” first proposed by German carmakers.

The chief executive of Volvo Cars urged the European Union to cut its 10% tariff on American-made cars, arguing that European automakers do not need protection from U.S. competitors, in an interview with Reuters on Thursday.

European Union officials have drawn up plans to impose levies on American imports, but questions abound about whether they would go through with them.