you clearly have never driven
you clearly have never driven a Leaf for any period of time. The estimate is derisively called the Guess-O-meter, as it is amazingly bad. It is common to see the estimate chanGe by a half dozen miles within a mile of leaving home on flat level ground, and the beginning estimates are goosed high to give eye popping high range estimate on the showroom floor. Even a well implemented algorithm is worth crowing about, as the Leaf crowd knows way too well what an annoyance a badly implemented one is to leave with.