It's always tricky to look at range in different countries, as different markets have different testing standards. For example, the U.S. EPA's range tests are more conservative than any other, since they're designed to better show real-world range. While other tests, like the Euro WLTP or China's CLTC are far more lenient.
So when BMW said that it just completed its own range test in the Chinese-market iX3 50L and achieved a whopping 640 miles on one charge, I was skeptical. However, instead of using any specific standardized test, it just drove from one place to another that was 640 miles away.
