Have an indicator of the estimated % degradation in battery pack capacity accessible from the main screen.
Lithium ion batteries can slowly lose capacity over time and usage. Many owners obsess over this and use various methods, probably not very accurate, to divine what is happening to their pack. Tesla is in the best position from the standpoint of the science behind this and software access to battery performance. An owner should be able to easily determine if the battery pack is behaving within normal limits or is experiencing an abnormally high loss of capacity. This would also be a available to Tesla via the vehicle’s log.
Competitively, it’s not clear any EVs currently offer such an option.