Japanese car manufacturing giant Nissan Motor is revising down production plans for its new Leaf series electric vehicle as the Chinese controls on exports of rare earth elements have created a shortage of car parts, Kyodo News reported on Tuesday. The setback for Nissan’s new EV is the latest in a series of hurdles that carmakers globally have faced since China announced export controls of rare earths in early April. Suzuki Motor, another Japanese giant, has reportedly halted production of its flagship Swift subcompact because of supply…