Is there any kind of time-frame guarantee to get to the level of functionality advertised? Does the bumper-to-bumber warranty or at least drivetrain plus all the sensors, screen and computer extent at least until a year after the car actually does what you pay for (as per description in the design studio)? Are there any guarantees that if additional sensors are needed, those will be retrofitted free of charge within some reasonable time frame. After how many years can you ask for your money back if the car doesn't do as advertised? Or is there fine print somewhere that says says something a bout you buying "future looking statements" with no guarantees whether they will ever come true? I'm just curious as I'm considering a second Tesla.