Regarding autopilot: if and when Tesla figures out full autonomy, would the models be able to update and get this improvement? I believe older Model S sedans can get the new and improved AP. The reason I ask is because I had planned on financing my Model 3 , not leasing. But a lease may be better if the changes, improvements etc... are a good enough reason to to turn the old one in. EV technology I think will be improving every year. The 2013 Model S already seems far behind the 2016.