After having announced fast battery swapping, I wonder if the next logical step might be a slight change in the business model. Why doesn't TESLA offer the option to buy a model S without any battery. Swap in as needed. Pay as you go. You would be charged for the swap plus a time based fee for the use of the battery. This would be similar to the Renault business model here in Europe (don't know about US). They will sell you the car and lease the battery to you. This would solve all the problems people are having about battery ownership, e.g. - returning 'your' battery after a swap - unknown life of the battery (battery anxiety?) - which battery size to choose (you could easily swith 60/85 kWh depending on current needs) Tesla could offer an under 50.000 $ car long before the Gen III. Open up to new groups of buyers. Unknown to me: Would a Model S sans battery qualify for the tax incentives? I believe this would be another step towards offering private transport as a service.