Although great in theory, I can see two major obstacles to adopting that: 1) Essentially requires a standard battery form factor. Tesla alone already has betwe

Although great in theory, I can see two major obstacles to adopting that: 1) Essentially requires a standard battery form factor. Tesla alone already has between 8 and 13 batteries (not bothering to check if e.g. the Model S 60 is the same as the Model X 60). Throw in other manufactures and any future Tesla sizes and this becomes infeasible pretty quickly as your "gas station" begins to look like a warehouse. 2) Warranty. When you're swapping out the most expensive part of the car several times a week, what happens when you get a dud? Is it covered by Tesla's warranty, the swap service, or are you just screwed? Or, what if I trade in my 8 year old essentially depleted battery for a brand new one? Obviously I should pay some sort of "upgrade" fee, but tracking that will be a headache.