The Chinese LR and
The Chinese LR and Performance Model Ys do not use CATL's LFP batteries. Only the SR model does, which is the biggest reason why it has a lower price, in addition to RWD. The upmarket versions use LG's ternary lithium-ion batteries. Soon the upmarket Model Ys will use LG's NCMA batteries. They could have stuffed more LFP batteries into the battery case, but likely the real reason why the mileage is higher on the China Model Y SR, is that they use the NEDC rating method which is unrealistically high compared to the EPA's mileage test numbers.