Yesterday, I took delivery of my Model S P100D. While I was at Tesla, I asked about the curb weight of the car. I was told it weighs SIX THOUSAND POUNDS!!! Obviously, the bigger the battery, the more range (and power!). But the bigger the battery, the heavier the car...and the weight of a car seems to pose its own set of problems. And that got me wondering what the maximum possible range might be for future versions of the Model S. I don't see how Tesla can just keep making batteries that are bigger and bigger and bigger in order to increase range because at some point, the size of the battery would not only make the cabin cramped, it will also necessarily make the car so heavy the weight would create problems not only for the car's suspension but also for our roads since heavier cars surely cause worse potholes than smaller, lighter cars. Does anyone have any thoughts on this?