I was thinking last night that an electric car like the Model S could theoretically last much longer than an ICE vehicle, and that a longer replacement cycle would have dramatic effects on the car industry. A vehicle like the Model S has no multi-gear transmission, no head gaskets that can blow, no emissions control that can fail. A well-maintained Honda can reasonably be expect to last 10-15 years, so I would not be surprised if a Model S could last significantly longer. The ability of a car like the Model S to receive interface and feature updates over 3G/4G networks also makes it less prone to obsolescence. Do you think that many Model S buyers could be keeping their cars for 20, 30, or even more years? On the flip side, there are luxury buyers who can afford and want to buy or lease the newest thing, so there may always be a segment of cars that see quick turnover. I suspect that the overall volume of automobile sales could fall drastically if people replace their vehicles less often.