The European Union is lowering its proposed tariffs on Tesla cars and other electric vehicles coming from China – the latest development in a long-running spat over import costs. That’s according to a source cited by Reuters and first reported by Mlex. Tesla’s proposed tariff rate will drop from 9% to 7.8%, after the total had already been lowered from a suggested 20.8% last month. BYD, meanwhile, will see no change to its 17% tariff. Geely has been allocated a rate of 18.8%, down from 19.3%. For SAIC and other companies not cooperating with the EU probe, meanwhile, a higher tariff of 35.3% wi…