Although BMW is making some nice EVs and they are selling more than they used to, the headline is misleading.
Tesla produce a lot of for the EU in China. They have a schedule where for each quarter, months 1, 2 and 3, in Month 1, they produce cars. In Month 2 they sail them over from China. And in Month 3, they arrive and are sold.
BMW managed to overtake Tesla in the first month of Q3, barely. When Tesla really had no cars for sale.
We're at the point where Tesla will stop being a near default choice as people realize they have other options. So we'll start to find out what their popularity really is.
The US has also been distorted by the charging network issue, but as more and more manufacturers get access to the Tesla network in the next few years that will cease to be an advantage too.
https://i.imgur.com/ZNv1AyD.jpg
Could it change? Maybe. But right now Tesla is the most popular EV in the US and Europe.
I’m fairly sure that if you take Volkswagen AG as one vendor (which you probably should, because it is one), they outsell Tesla (they have about six brands producing electric cars, mostly rebrands of the VW id.3/4.)