Tesla obviously thought there was a problem with some of the pre 2016 cars in Norway. and obviously they degrade anyway, 'cos they shove old ones into powerwalls, where capacity/weight doesn't matter. Anyway, as you've got a Tesla, so what does it say wrt software ownership, if anything, and what have you agreed with Tesla wrt updates, can you turn them off, go back to previous versions, or is it all under their control?