Hope it's ok to post the following request in this section. I wrote a little web application for european drivers interested in buying an EV. Some very helpful german forum members have already provided valuable input: TFF Forum - Tesla Fahrer und Freunde ElectriCar.Guru: Reichweitenvergleich If you are interested and would like to contribute as well, please post your response here or in the tff-forum. I am especially interested in criticism about the range calculation results. But of course, if you have cool ideas for new features, I am open for suggestions as well. The sources are already publicly available on GitHub (even though it's not quite ready for an easy on-boarding of more contributors though, but I am working on that). The URL is ElectriCar.Guru Cheers!