I am just wondering, are there any customers of this exotic brand, especially in the US?
And btw can any other EV (e.g. Nissan Leaf, Toyota RAV4 EV) charge at Tesla's fast charging stations?
The answer as of right now is no. The BYD e6 EV can only be charged by a BYD charging station. If you look at these plugs, you'll see the difference between the two:
Standard J1772 plug
BYD e6 plug
In this cars.com article the author talks about charging the e6:
NOTE: In the article, "Snower" is the person in the US who owns the e6 the guy is talking about.
You can also go to the BYD website and see what they have to offer.