However the Model 3 will beat it on range. Most people think they need the range (even if they don't). Plus BMW doesn't have a Supercharger network.

That might change until the 3 is being delivered in Europe. BMW has a network called ChargeNow or something. However, it is not sufficiently large yet.

no. It's still too expensive.

Okay, I can see that. One could then argue that Tesla is too expensive as well. From that I'd say that high premium EVs are too expensive in general.

Not when you look at the used car market or lease options. Here's an article describing how you can get one for 130/month on lease: http://leasehackr.com/blog/2015/11/8/californians-lease-a-bm...