I’ve done a bit of work to integrate my Tesla with my home automation mostly so that the car automatically starts to charge when there is excess solar being generated as I’d rather my excess solar go into my car before going into the grid. Part of that work made it easy for me to add a complication to my Android Wear watchface that shows the current range of my Tesla (I could just as easily display the cars state of charge but range seemed more useful to me). Whenever I query my car as part of my home automation I store its state in a redis keystore which I can then query. I’ve done a top level write up of how I did it but if people are interested in specifics please let me know via GitHub (just add a comment to the Gist embedded below).