I want to buy a tesla that seller says has "free supercharging for life" included. but as we all know tesla does not always honor that if the car is sold. but the point is, if i buy I wont know untill i go register the car - then contact tesla saying I am new owner - or - I dont have to register it yet - and seller and I both can go into our repective Tesla app/accounts and deem me the new owner? quite a big differnce.