I always thought TSLA was overhyped, but after riding in one this past weeekend, I must say that they are head and shoulders better than any other car I've ridden in. They've thought of everything (e.g. the sunroof gets darker automatically when it's brighter out).
My friend who owned the car told me that the base price for the car doesn't include self driving and that you have to pay a lot extra for (I believe he said it was $12k), which costs them nothing to add to the vehicle, just a software upgrade. It's a nice business model, but not nice enough to convince me to own the company.
When I price the stock out like any other car company, the price is still outrageous, but I can see why it's so hard to short. People like my friend who love the car so much that they buy the stock and think the two are linked together like a double helix are stubbornly propping up the stock price and fighting against shorts with the passion of the converted.