> The Model S easily outsells any competitor's luxury car in the same class, you'd have to combine all A6 / 5 series / E Class sales to even hope to show the same numbers.

In the US, Tesla's home market, yes. But if you go to Europe, it changes completely - those three models you listed average a combined annual European sales volume north of 300 000, which is more than the global total of all Tesla cars ever sold.

The only way Tesla will be anything but an SV-hype-fueled anecdote is if they can actually deliver on the Model 3 next year, and it ain't looking too peachy. I mean, GM's outselling them on chargeable vehicles in the US this year.