i live in Vegas and bought from a private seller in Newport Beach... Alliant credit Union told me what to do... it was easy for them and they walked me through it in 5 minutes. Although thinking back the original owner had the car paid off so he signed the title right over on the spot.
That being said if you go with the same lender that the original owner used then the bank already has a hold of the title. I drove a rental car to LA. looked at the car, went to the bank, handed them a check, handed the owner a cashier's check and drove away... 15 minutes of transactions but 4 hours of traffic LOL...then drove back to Vegas that same afternoon.
I also went to great lengths to talk to Tesla about the car's history AND had the original owner buy the extended warranty for 4 more years prior to transferring ownership (which is no longer an issue I believe)
In nevada you dont pay sals tax on private sale used vehicles... saved me about $6300.... and I got 6 years and up to 100K in mileage