Tesla returns back to Taiwan in 2016 brings Model S shipping in 2017 remarks a milestone for the island. We made an order in 2016 and have my Model S shipped in Spring, 2017. We drain the oil out from deep earth expense 60% for transportation and 80% of the gas used for transportation are wasted as heat. Watch the heavy traffic and imagine it as burning fuel in open air as 50% of the petroleum we dig are burned in waste. Electric vehicle(EV) with the efficiency up to 80 % is by no means just the future but also the "must" we are dealing with transportation tomorrow. Tesla with the unique auto pilot equipped vehicles points another issue as we forgot how to use abacus since we have computers but we still drive by ourselves manually everyday. I would like to demonstrate in this book with my exploration and observation to Tesla Motors. For facilitating the use of EV and representing the applicability of the sophisticated technology, auto pilot, in the 70% area rooted mountains height up to 4000 meters in Taiwan. I am not an English native writer. I hope my poor writing could clearly state my ideas and your comments and opinions are more than just welcome.