Hi Mark, For entertainment value, if nothing else... This conversion took a Model S and melded it with a classic Rolls Royce, and kept the main Tesla components working. Rather amazing accomplishment. Why I bring this up here is that they made a custom interface board to talk to the Tesla Model S CAN bus, feeding it with information from some decidedly non-Tesla stuff. They say it's been open sourced, so perhaps there might be some clues in there as to additional things one can do with the OVMS Model S integration? https://www.youtube.com/watch?v=5A9xnbcGXso Enjoy, Greg