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.

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

The EU says the U.S. is resisting efforts to strike a trade deal and warned of countermeasures if no agreement is reached with U.S. by Aug. 1.